CN104908801B - Telescopic steering apparatus - Google Patents

Telescopic steering apparatus Download PDF

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Publication number
CN104908801B
CN104908801B CN201510185954.9A CN201510185954A CN104908801B CN 104908801 B CN104908801 B CN 104908801B CN 201510185954 A CN201510185954 A CN 201510185954A CN 104908801 B CN104908801 B CN 104908801B
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CN
China
Prior art keywords
side stand
displacement
hole
column jacket
friction member
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CN201510185954.9A
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Chinese (zh)
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CN104908801A (en
Inventor
森山诚
森山诚一
三原伸
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NSK Ltd
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NSK Ltd
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Priority claimed from JP2011168006A external-priority patent/JP5464182B2/en
Priority claimed from JP2011174566A external-priority patent/JP5464184B2/en
Priority claimed from JP2011199176A external-priority patent/JP5408214B2/en
Application filed by NSK Ltd filed Critical NSK Ltd
Publication of CN104908801A publication Critical patent/CN104908801A/en
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Publication of CN104908801B publication Critical patent/CN104908801B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/184—Mechanisms for locking columns at selected positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)

Abstract

The present invention realizes a kind of telescopic steering apparatus, and inner prop (43) can be stably maintained to the internal side diameter of column jacket (42).Column jacket (42) is obtained from being hollow tube is shaped to radial outside bulging by method of hydroforming work including support (46).Displacement side stand (74) is also integrally formed with column jacket (42) bulging.In addition, the protrusion (47a, 47b) for constituting support (46) is circumferentially formed thereon the position more than 3 in the inner peripheral surface of column jacket (42), the outer peripheral face of the protrusion (47a, 47b) and inner prop (43) is abutted with the position of circumferencial direction more than 3.

Description

Telescopic steering apparatus
It is that January 24, Application No. 201280000038.8, international application no in 2012 are PCT/ the applying date that the application, which is, JP2012/051475, the divisional application of the application for a patent for invention of entitled " steering axle device ".
Technical field
The present invention relates to a kind of steering axle device applied to telescopic steering apparatus, the telescopic steering apparatus, which has, to be used In the Telescopic of the front and back position of regulation steering wheel.
Background technology
As shown in figure 46, the transfer of automobile-use is configured to：The rotation of steering wheel 1 is transmitted to tooth sector unit 2 Input shaft 3, with the rotation of the input shaft 3, push-and-pull pair of right and left track rod 4, thus assign front vehicle wheel necessarily turn To angle.The supporting and fixing of steering wheel 1 is in the rearward end of steering spindle 5, and the steering spindle 5 is with axially through cylindric steering column 6 State is rotatably freely supported on the steering column 6.The leading section of steering spindle 5 via general utility coupling 7 and jackshaft 8 rearward end Connection, the leading section of the jackshaft 8 is connected via another general utility coupling 9 with input shaft 3.
It is currently known to have following mechanism in such transfer：For the body and vehicle driving posture according to driver Adjust the leaning device of the upper-lower position of steering wheel 1；Telescoping mechanism for adjusting front and back position.In order to constitute leaning device, Steering column 6 is supported to carry out swing displacement centered on the pivot 11 set in the width direction relative to vehicle body 10.Separately Outside, in order to constitute telescoping mechanism, steering column 6, which is used, makes column jacket 13 and inner prop 14 be in the construction that scale shape is elastically combined, Steering spindle 5 is used and is constructed as below：Outer shaft (outer tube) 15 and interior axle 16 is engaged etc. by spline and is combined, make moment of torsion transmission freely And retractile construction.Also, by the displacement side stand supporting by rear end part for being fixed on steering column 6 for can be relative to The fixation side stand 12 for being supported on vehicle body 10 carries out the displacement of above-below direction and fore-and-aft direction.In addition, width refers to vehicle body Width, it is consistent with left and right directions.In addition, fore-and-aft direction refers to the fore-and-aft direction of vehicle body.In addition, in the example of diagram, Motor 17 is installed on electric type power steering device as auxiliary power source, and the electric type power steering device is used to seek drop Power required for low operation steering wheel 1.
In including leaning device, the transfer of telescoping mechanism, it is desirable to be able to adjust steering wheel 1 position and can be by The construction for the position that steering wheel 1 is fixed on after regulation.It is public that Figure 47 and Figure 48 illustrate Japanese Unexamined Patent Publication 2001-322552 publications institute Open construction, i.e. rotate rod component 19 using adjusting rod 18, thus, make the axial direction dimension of cam gear 20 or contracting While small, cam member 21 is set to swing displacement.In this configuration, according to the expansion or contraction of cam gear 20, it is fixed on outer Post 13a displacement side stand 22 can be locking relative to fixed side stand 12a or departed from.In addition, according to the pendulum of cam member 21 Dynamic displacement, can allow hand over inner prop 14a be relatively moved relative to column jacket 13a.
Constitute such transfer steering column 6a column jacket 13a and inner prop 14a with column jacket 13a by fore-end The state that inner peripheral surface and the inner prop 14a outer peripheral face by rear end part are capable of axially opposed displacement is chimeric in all-round scope. In addition, when manufacturing column jacket 13a, first, passing through aluminium die casting (aluminium die cast) processing method formation column jacket main body. Afterwards, machining is implemented to the inner peripheral surface of the column jacket main body and finished.On the other hand, displacement side stand 22 with column jacket The mode of 13a independences is formed, and is fixed on a column jacket 13a part by welded combine.
, it is necessary to accurately finishing column jacket 13a internal diameter in the case of such transfer, needed for existing for this The problem of machining wanted is bothered, high processing costs are such.In addition, column jacket 13a inner peripheral surface and inner prop 14a outer peripheral face exist Be fitted together in all-round scope, if therefore column jacket 13a internal diameter precision not enough, run-off the straight contact, also in the presence of can not be by inner prop 14a Be stably maintained at column jacket 13a internal side diameter it is such the problem of.
Figure 49 represents the construction disclosed in Japanese Unexamined Patent Publication 2008-302751 publications, i.e. in column jacket 13b inner peripheral surface The part overlapping with inner prop 14a outer peripheral face the multiple positions of circumferencial direction, be formed with prominent from the inner circumferential towards radially inner side The protrusion 23 gone out, the top ends (radially inner side end) of these protrusions 23 are abutted with inner prop 14a outer peripheral face.In the construction In, in column jacket 13b inner peripheral surface, the top ends only to protrusion 23 implement the machinings such as wire pulling method, therefore energy Enough seek to reduce processing cost.
When manufacturing column jacket 13b, first, pass through aluminium die-casting process method, hydroforming (hydroform) processing method etc. Form column jacket main body.Afterwards, to the circumference of part overlapping with inner prop 14a outer peripheral face in the inner peripheral surface of the column jacket main body Forging processing and wire pulling method are implemented in the multiple positions in direction (being in the illustrated case 11), form the inner circumferential from column jacket 13b The protrusion 23 protruded towards radially inner side.But, in this case, form column jacket 13b method and form protrusion 23 Method is different, therefore can not avoid the problem of processing trouble, processing cost increase.
In addition, in order that inner prop 14a not run-off the straights contact or be stably supported on column jacket 13b internal side diameter with rocking, It is expected that the abutting state between all protrusions 23 and inner prop 14a outer peripheral face is identical.But, multiple protrusions 23 are implemented For making abutting state identical processing trouble.
Figure 50 represents the construction of the steering column 6c disclosed in Japanese Unexamined Patent Publication 2008-302751 publications.Constitute steering column 6c Column jacket 13c by the raw material of tabular into bending forming, by weld circumferencial direction ora terminalis (upper edge in Figure 50) each other and Be formed as cylindric.In addition, in the assembled state, in the circumference of the column jacket 13c relative with inner prop 14a outer peripheral face inner peripheral surface Supporting claw 24 is formed with the position of 3, direction.These supporting claws 24 are formed in the following way, i.e. to the one of column jacket 13c Punch process is implemented in part, makes the part from column jacket 13c inner circumferential towards radially inner side bending.
In addition, the axial part in column jacket 13c outer peripheral face is provided with displacement side stand 22a.Displacement side stand 22a leads to The raw material of identical tabular are formed when crossing bending forming with forming column jacket 13c, and by making the periphery of an ora terminalis and column jacket 13c Face is connected, and is formed by making another ora terminalis be welded in the outer peripheral face, and being clamped portion 25 by pair of right and left is constituted.
In the case of column jacket 13c, supporting claw 24 is formed in 3 positions of circumferencial direction at substantially equal intervals.Therefore, For the abutting state identical handling ease of the top edge and inner prop 14a outer peripheral face that make all supporting claws 24.But, The construction that claw 24 is spiral arm beam-like is supported, therefore presence is difficult to ensure that for inner prop 14a to be stably supported on into column jacket 13c's The problem of rigidity of internal side diameter.
In addition, in the telescopic steering apparatus of above-mentioned conventional construction, if column jacket 13 and inner prop 14 are radially overlapping Partial axial dimension is elongated, then the rigidity on the width of displacement side stand 22 improves and is difficult to bend.Accordingly, it would be desirable to root Change the operating physical force for putting on adjusting rod 18 according to the axial dimension of the part radially overlapping with inner prop 14 of column jacket 13.As a result, adjust Pole 18 it is operational unstable, it is possible to can not give inner prop 14 stable supporting rigidity (fastening force).
In addition, in general telescopic steering apparatus, when adjusting the position of steering wheel 1, operating and adjusting along prescribed direction Pole 18, makes to act on the frictional force between fixed side stand 12a and displacement side stand 22 and reduces.On the other hand, by direction When disk 1 keeps position after adjustment, along the direction operation adjusting rod 18 opposite with prescribed direction, make rubbing between these support Wipe power increase.In such construction, in order to do not increase adjusting rod 18 operational ton increase and keep steering wheel 1 after adjustment Position power, preferably increase rubbing surface quantity, seek increase friction area.In Japanese Unexamined Patent Publication 2008-100597 publications, day This Unexamined Patent 10-35511 publications, Japanese Unexamined Patent Publication 2007-69821 publications, Japanese Unexamined Patent Publication 2011-5896 publications and Japan In real public clear 62-19483 publications, describe by making the overlapping construction to increase rubbing surface quantity of multiple friction members.
Figure 51 and Figure 52 represent 1 of the telescopic steering apparatus described in Japanese Unexamined Patent Publication 2011-5896 publications.In the dress In putting, axially longer the fore-and-aft direction elongated hole 29 extended along steering column 6d run through for rod component 19 is with left-right direction (width) insertion displacement side stand 22b state is located at displacement side stand 22b.On the other hand, fixed side stand 12a passes through Formed, the top bracket element 26 and bottom bracket element 27 with reference to fixed upper support element 26 and bottom bracket element 27 Formed respectively by crooked metal sheet.Top bracket element 26 is using known construction with can be forwards in secondary collision The mode come off is supported on body side.In addition, the left side that the state that bottom bracket element 27 includes leaving in the width direction is set Right a pair of supporting boards 28.The interval D and displacement side stand 22b of the medial surface (mutually relative side) of these supporting boards 28 Lateral surface interval (displacement side stand 22b width) W it is roughly the same (D ≈ W).In addition, in the phase of a pair of supporting boards 28 The position being mutually aligned is formed through the partial circle extended along the vertical direction longlyer centered on pivot 11 of rod component 19 The above-below direction elongated hole 30 of arcuation.Also, in the outboard side portion of supporting board 28, respectively it is equipped with multiple the 1st friction plates 31, 2 friction plates 32.
The 1st elongated hole 33 is formed with the 1st friction plate 31, the 2nd elongated hole 34 is formed with the 2nd friction plate 32.1st friction The end of plate 31 combines the upper end lateral surface for being supported on supporting board 28, the end of the 2nd friction plate 32 using the 1st limit screw 35 Portion combines the leading section lateral surface for being supported on displacement side stand 22b using the 2nd limit screw 36, thus prevents the 1st friction plate 31 Along the length direction displacement of the 1st elongated hole 33, length direction displacement of the 2nd friction plate 32 along the 2nd elongated hole 34 is prevented.Such 1st The friction plate 32 of friction plate 31 and the 2nd is disposed in the lateral surface of supporting board 28 with alternately stacked state.
Rod component 19 runs through fore-and-aft direction elongated hole 29, above-below direction elongated hole 30, the 1st elongated hole 33 and the 2nd elongated hole 34.At this The base end part (right part in Figure 52) of the bar portion 37 of rod component 19, is formed with export-oriented flange shape flange part 38.In addition, shape Into in bar portion 37 by the engaging protuberances 39 of the section ellipse of cardinal extremity part to be only capable of along the upper of a side (right in Figure 52) The mode of the displacement (lifting) of lower direction elongated hole 30 is sticked in the above-below direction elongated hole 30.
On the other hand, tip portion is leaned in the pars intermedia of bar portion 37, in the support plate from the opposing party (left in Figure 52) Portion 28 and be disposed in supporting board 28 outboard side portion the 1st friction plate 31 and the 2nd friction plate 32 protrude part, be embedded with outside Push plate 40 and the cam gear 20 provided with pushing.Pressing device is constituted using the cam gear 20 and rod component 19.It is convex Wheel apparatus can expand or shrink its axial dimension T according to the operation of adjusting rod 18, and its construction is known.Make adjusting rod 18 Rotate and make in the state of axial dimension T expands along prescribed direction, the one side of push plate 40 and the medial surface of flange part 38 Interval reduces, and makes to act on the frictional force increase being present between them and between mutually friction wedged opposite face.
I.e., in this condition, in the left and right sides, between displacement side stand 22b side and the medial surface of supporting board 28 Abutting pressure, the lateral surface of supporting board 28 and be present in most inner side the 2nd friction plate 32 medial surface between abutting pressure Abutting pressure between power, the adjacent medial surface of the 1st friction plate 31 and the lateral surface of the 2nd friction plate 32, it is present in outermost The lateral surface of the 1st friction plate 31 and the one side of push plate 40 between and the abutting pressure between the medial surface of flange part 38 All rise.In this condition, act on these friction holding sections between frictional force summation it is sufficiently large.As a result, energy Enough make displacement side stand 22b sufficiently large to fixed side stand 12a bearing strength.
In contrast, when adjusting the position of steering wheel 1, adjusting rod 18 is rotated along the direction opposite with prescribed direction, The axial dimension T of cam gear 20 is reduced, expands the interval of the one side of push plate 40 and the medial surface of flange part 38.At this Under state, the frictional force for being present between them and acting between mutually friction wedged opposite face reduces or even disappeared Lose, can be relative to fixed side stand 12a along the vertical direction and fore-and-aft direction regulation displacement side stand 22b.In this condition, exist After the position adjustments of steering wheel 1 to desired position, adjusting rod 18 is set to be rotated along prescribed direction, thus, it is possible to by steering wheel 1 position is stably maintained at desired position.
But, in such conventional construction, there is problems with：The assembling structure of 1st friction plate 31 and the 2nd friction plate 32 Complexity is made, and manufacturing cost is high.In addition, when making steering wheel 1 be moved to the front position or rearmost position that can adjust, respectively The inner surface of the fore-and-aft direction elongated hole 29 of outer peripheral face and displacement side stand 22b for the bar portion 37 of metal rod component 19 has It may strongly collide with.Also, when strongly colliding with, it is possible to which the driver to operation steering wheel 1 brings discomfort, no Happiness sense.In contrast, in Japanese Kohyo 10-512825 publications, it is proposed that with around the front and back of displacement side stand To the state of elongated hole, the construction of cushion collar (sleeve) is set.But, for making construction and Figure 51 and Figure 52 provided with interference set Multiple friction plates of shown use improve the combined situation of construction of the position confining force of steering wheel 1, are not enlightened. Although these constructions can be individually mounted to telescopic steering apparatus, assembly manipulation trouble, it is impossible to avoid cost from increasing.
In addition, as the technology related to the manufacture of steering column, in Japanese Unexamined Patent Publication 2006-255785, disclosing as follows The manufacture method of steering column：Using method of hydroforming work, in the axial pars intermedia formation protrusion of the raw material of hollow tubular After portion, in the side of sidewall portion formation through hole of the protuberance, thus the protuberance is regard as column holder.
Patent document 1：Japanese Unexamined Patent Publication 2001-322552 publications
Patent document 2：Japanese Unexamined Patent Publication 2008-302751 publications
Patent document 3：Japanese Unexamined Patent Publication 2008-100597 publications
Patent document 4：Japanese Unexamined Patent Publication 10-35511 publications
Patent document 5：Japanese Unexamined Patent Publication 2007-69821 publications
Patent document 6：Japanese Unexamined Patent Publication 2011-5896 publications
Patent document 7：Japanese real public clear 62-19483 publications
Patent document 8：Japanese Kohyo 10-512825 publications (WO96/15931)
Patent document 9：Japanese Unexamined Patent Publication 2010-52639 publications
Patent document 10：Japanese Unexamined Patent Publication 2006-255785 publications
The content of the invention
, can be steady by inner prop it is an object of the invention to realize a kind of construction of telescopic steering apparatus steering axle device Surely the internal side diameter of column jacket, and the operating physical force for putting on adjusting rod can not be increased the behaviour of the stabilization of adjusted bar are maintained at The property made.
In addition, it is an object of the invention to realize a kind of construction of steering axle device, can increase and be maintained at steering wheel The confining force of position after can adjusting, moreover, as needed, adjusting critical even in being moved to the front and back position of steering wheel During position, it can also prevent from bringing discomfort, discomfort to driver, and assembling is easy, realize cost degradation.
The present invention relates to a kind of telescopic steering apparatus steering axle device.The feature of the steering axle device of the present invention exists In having：
Steering column, the steering column has：The column jacket of tubular, the internal diameter that the column jacket has an at least axial direction part can expand Support more than with the part of diminution and at 3 that inner peripheral surface is circumferentially formed thereon, the column jacket exists including the support Be inside by make hollow tube to radial outside bulging shape obtained from；The inner prop of tubular, the inner prop has in circumferencial direction 3 The outer peripheral face that position above is abutted with above-mentioned support, and be fitted together to by above-mentioned support in mode that can be axially displaced The internal side diameter of above-mentioned column jacket is supported on, the steering column is in a rotatable manner in interior side bearing steering spindle, and the steering spindle is rear End is provided with steering wheel；
Fixed side stand, the fixation side stand has：It is fixed on the part of body side；A pair of supporting boards, this pair Board portion is supported on the above-mentioned part for being fixed on body side, and both sides clip can make in above-mentioned in above-mentioned column jacket in the width direction The part that footpath expands and reduced；Vehicle body side through hole, the vehicle body side through hole is formed at being mutually aligned for above-mentioned a pair of supporting boards Position；
Displacement side stand, the displacement side stand is by with obtained from above-mentioned column jacket integratedly bulging shaping, having：One To being clamped portion, this pair clamped portions are clamped by above-mentioned a pair of supporting boards；Post side through hole, the post side through hole is formed at the quilt Clamping part, it is long in the axial direction of above-mentioned column jacket；
With rod component and using the rod component rotation make above-mentioned a pair of supporting boards it is mutual interval expand and The mechanism of diminution, above-mentioned rod component is matched somebody with somebody in the width direction with the state through above-mentioned vehicle body side through hole and above-mentioned post side through hole If；
Adjusting rod, the adjusting rod is located at the base end part of above-mentioned rod component, for rotating above-mentioned rod component.
It is preferred to use and is constructed as below：Above-mentioned column jacket configuration is at the rear of above-mentioned inner prop, and above-mentioned displacement side stand also has one To rake, a pair of angled portion makes one end be connected with above-mentioned a pair clamped portions, and a pair of angled portion is from above-mentioned a pair of quilts Each of clamping part starts, and extends to direction close to each other in the direction of the width, and the other end is connected via connecting portion each other, In the position being aligned with above-mentioned post side through hole in the axial direction of above-mentioned column jacket, above-mentioned a pair of angled portion is with passing through above-mentioned supporting board The direction angulation for pushing above-mentioned clamped portion becomes big from front direction rear.
Instead of such scheme, it is preferred to use be constructed as below：Above-mentioned column jacket configuration is at the rear of above-mentioned inner prop, above-mentioned displacement side Support also includes the bottom for linking above-mentioned a pair clamped portions in the width direction, and the width pars intermedia in the bottom is formed There is elongated hole long in the axial direction.
Instead of such scheme or on the basis of such scheme, it is preferred to use be constructed as below：Above-mentioned displacement side stand is also wrapped The bottom for linking above-mentioned a pair clamped portions in the width direction is included, and in the axial rearward end portion of above-mentioned displacement side stand, is formed with The above-mentioned clamped portion of My World extends to the elongated hole in the clamped portion of the opposing party via above-mentioned bottom.
Instead of such scheme or on the basis of such scheme, it is preferred to use be constructed as below：In above-mentioned column jacket at least The position that a part is aligned with above-mentioned post side through hole vertically, is formed with long column length hole in the axial direction of above-mentioned column jacket.
In such a situation it is preferred that using being constructed as below：Above-mentioned column length hole is formed in above-mentioned column jacket in a circumferential direction The position of side stand side, central axis of the imagination plane through the inscribed circle of above-mentioned support are moved than contemplating the top rheme of plane And it is orthogonal with above-mentioned a pair of supporting boards of above-mentioned fixed side stand.
In such a situation it is preferred that using being constructed as below：Above-mentioned displacement side stand also includes linking above-mentioned one in the width direction Bottom to being clamped portion, the axial rearward end of the bottom is connected with the outer peripheral face of above-mentioned column jacket using rear end side connecting portion, above-mentioned The axial location of the rearward end in column length hole is than above-mentioned rear end side connecting portion rearward.
Instead of such scheme or on the basis of such scheme, it is preferred to use be constructed as below：Above-mentioned support is located at as follows Position：In the state of the axial dimension of the above-mentioned column jacket part radially overlapping with above-mentioned inner prop is most short, above-mentioned column jacket it is interior The part overlapping with this in side face be aligned and along above-mentioned column jacket axially from two positions.
In such a situation it is preferred that using being constructed as below：Above-mentioned support is located at following two positions：The inner circumferential of above-mentioned column jacket In face, the position alignment by top along the axial direction of above-mentioned column jacket Yu above-mentioned displacement side stand position and along above-mentioned column jacket Axially with the position of the position alignment held rearward of the displacement side stand.
Additionally, it is preferred that using being constructed as below：The lateral surface in portions is clamped at above-mentioned a pair of above-mentioned displacement side stand and upper Part between the medial surface for above-mentioned a pair of the supporting boards for stating fixed side stand, is all arranged alternately with these parts and is supported on 1st friction plate of above-mentioned displacement side stand and with can with above-mentioned rod component action linkage state support it is shaft-like in this 2nd friction plate of component.
In the present invention, the steering axle device for the form applied in additional mode and the steering axle device of above-mentioned form are same Include sample：Steering column, displacement side stand, the 1st fore-and-aft direction elongated hole, supporting support (fixed side stand), the 1st through hole, the 1st are rubbed Wipe component, the 2nd fore-and-aft direction elongated hole, the 2nd friction member, the 2nd through hole, the pressing device with rod component.But, column jacket and Column jacket is not limited to above-mentioned form to the holding construction (construction of support) of inner prop.Also, column jacket and displacement side stand It can not also be integrated, also It is not necessary to shape obtained component by bulging.
Particularly, in the steering axle device of the form, the 1st fore-and-aft direction elongated hole is formed at above-mentioned displacement side stand, It is long in the axial direction of above-mentioned steering column.Above-mentioned supporting support is supported on body side, with pair of right and left supporting board, this pair of supportings Plate portion is set with the state of the above-mentioned displacement side stand of sandwich in the width direction.1st through hole is formed at above-mentioned supporting board The part being mutually aligned, and form the part being aligned in the part with the 1st fore-and-aft direction elongated hole.1st friction member is with can A part for the displacement side stand is supported on the mode of above-mentioned displacement side stand simultaneous displacement.2nd fore-and-aft direction elongated hole is formed The part being aligned with the 1st fore-and-aft direction elongated hole in the 1st friction member, it is long in the axial direction of above-mentioned steering column.2nd friction structure Part is clamped between the lateral surface of above-mentioned displacement side stand and the 1st friction member.2nd through hole is formed at the one of the 2nd friction member Partly, a part of corresponding part i.e. with the 2nd fore-and-aft direction elongated hole.In addition, above-mentioned pressing device is configured to：Including shaft-like Component and a pair of pressing portion, above-mentioned rod component is through the fore-and-aft direction elongated hole of the 1st through hole, the 1st and the 2nd and the 2nd through hole, above-mentioned one The part that the lateral surface from above-mentioned supporting board to pressing portion located at the both ends of the rod component is protruded.Also, the 1st friction Component and the 2nd friction member, above-mentioned supporting board are compacted the lateral surface that upward rheme moves side stand.In addition, above-mentioned shaft-like structure Part runs through the 2nd through hole with following state, i.e. can carry out the axial displacement of the rod component, and the displacement beyond its axial direction The state being substantially prevented from.
In addition, the 1st friction member includes the 1st friction plate portion, links plate portion, engaging portion.1st friction plate portion is clamped in above-mentioned Between the medial surface of supporting board and the 2nd friction member.The upward rheme of ora terminalis of above-mentioned link plate portion from the 1st friction plate portion moves side The width central portion bending of support.In addition, above-mentioned engaging portion is from the top ends of above-mentioned link plate portion to the 1st friction plate portion Direction bending hook-type.Locking hole is provided with the width pars intermedia of above-mentioned displacement side stand.Also, the 1st friction member With by above-mentioned engaging portion is engaging in the width ora terminalis of above-mentioned locking hole and makes above-mentioned link plate portion and above-mentioned displacement side stand Overlapping state group is loaded on the displacement side stand.
In the form, preferably set and protect in the part around the 2nd fore-and-aft direction elongated hole of the lateral surface of the 1st friction member Hold recess.Also, cushion collar is kept in the holding recess, cushion collar bullet as the elastomers such as rubber, vinyl Property material system, and provided with long the 3rd fore-and-aft direction elongated hole in the axial direction of above-mentioned steering column.In addition, making the 3rd fore-and-aft direction elongated hole Rearward end configure in the part more forward than the rearward end of the 2nd fore-and-aft direction elongated hole, match somebody with somebody the leading section of the 3rd fore-and-aft direction elongated hole Put the part rearward in the leading section than the 2nd fore-and-aft direction elongated hole.
Furthermore it is preferred that the 2nd friction member includes：It is formed with the flat 2nd friction plate portion of the 2nd through hole and is rubbed from the 2nd The upper end in wiping board portion on the outside of width bending from side observe the engaging plate portion for being shaped as waveform.In addition, Between upside partition board portion and the lower surface of above-mentioned link plate portion that the upper end of above-mentioned holding recess is separated, above-mentioned turn is arranged on Long engagement groove part on to the axial direction of post.Also, above-mentioned engaging plate portion is sticked in the engagement groove part with following state, i.e.,：Energy Enough displacements for carrying out axial direction, and the state being prevented from the displacement of axially direction at a right angle, i.e. above-below direction.
In the form, needing to use in the king-sized situation of confining force of the position by steering wheel holding after adjustment Under, make the 1st friction member by combining multiple the 1st friction member elements to constitute.These the 1st friction member elements are respectively with energy Enough modes with above-mentioned displacement side stand simultaneous displacement are supported on a part for the displacement side stand.In this condition, composition is made 1st friction plate portion of the 1st friction member element is mutually left along the axial direction of above-mentioned rod component each other, also, links each Plate portion is each other and hook portion overlaps each other.Also, by the 2nd friction member of more than one be clamped in following part at least one at Between part, i.e.,：Part, any one 1st friction member member between 1st friction plate portion of the 1st friction member element Part the 1st friction plate portion and above-mentioned displacement side stand lateral surface between part, the 1st of any one 1st friction member element the Part between the plate portion that rubs and the medial surface of above-mentioned supporting board.
In order to ensure left-right balance and increase above-mentioned confining force, preferably in two lateral surfaces of above-mentioned displacement side stand and above-mentioned One group of the 1st friction member and the 2nd friction member are respectively set between the medial surface of two supporting boards.In addition, on the 1st friction member Material and manufacture method, if intensity and coefficient of friction required for can obtaining, are not particularly limited.For example, the 1st friction member It can manufacture in the following way, i.e.,：By the extrusion molding material of the light-alloys such as aluminium class alloy or drawing material cutting established practice Measured length, then implement finishing (trimming) processing for removing unnecessary portion.Or, the 1st friction member can also lead to Following manner manufacture is crossed, i.e.,：To by punching and shaping metallic plate such as iron class alloy plate as carbon steel plate, stainless steel plate Obtained intermediate raw material carries out bending forming processing.
Following situation is preferred, i.e. in the rear and front end portion of above-mentioned holding recess, to block two before and after the holding recess The respective at least one of state of end opening is formed with a pair and bends up portion, and bend up portion using these protects from front and rear sandwich The above-mentioned cushion collar of the holding recess is held in, prevents the cushion collar from being moved along the longitudinal direction relative to the 1st friction member.Instead of upper State scheme or on the basis of such scheme, above-mentioned cushion collar can also be incorporated into the interior table of above-mentioned holding recess by bonding etc. Face.
In the telescopic steering apparatus of the present invention, column jacket and it is set to integral displacement side stand with the column jacket and passes through hydraulic pressure The bulgings such as forming and machining method shape and formed as one, and above-mentioned column jacket includes the support for being used for supporting inner prop.Therefore, in branch Bearing portion is by the case that multiple (3) protrusions are constituted in the past, can also seek reduction processing cost, and can make these branch Bearing portion has high rigidity.In addition, also without following operation：Displacement side stand is set independently of one another with column jacket, carry out The such troublesome fixed operation of welding.
Particularly, the outer peripheral face of above-mentioned support and the inner prop overlapping with the support is made with 3 positions of circumferencial direction In the case of putting the state support that place is abutted, above-mentioned support can be made reliably to be abutted with the outer peripheral face of above-mentioned inner prop, and by It it is only 3 in abutting portion, thus be accordingly used in makes the abutting state identical processing of all abutting portion become easy.
Brief description of the drawings
Fig. 1 is the sectional view of the 1st for representing the 1st embodiment of the present invention.
Fig. 2 is the side view for only taking out the column jacket of the 1st of the 1st embodiment and representing.
Fig. 3 is the A-A sectional views in Fig. 2.
Fig. 4 is the side view for only taking out the column jacket of the 2nd of the 1st embodiment of the present invention and representing.
Fig. 5 (a) is the B-B sectional views in Fig. 4, and (b) is the C-C sectional views in Fig. 4.
Fig. 6 (a) is the side view for only taking out the column jacket of the 3rd of the 1st embodiment of the present invention and representing, (b) is Upward view.
Fig. 7 is the D-D sectional views in Fig. 6 (a).
Fig. 8 (a) is only to take out the column jacket of the 4th of the 1st embodiment of the present invention and represent side view, and (b) is table Show the upward view of the 1st of the elongated hole for being formed at outer column bottom, (c) is the upward view of the 2nd for representing the elongated hole.
Fig. 9 is the E-E sectional views in Fig. 8 (a).
Figure 10 (a) is the side view for only taking out the column jacket of the 5th of the 1st embodiment of the present invention and representing, (b) is Upward view.
Figure 11 (a) is the top view for only taking out the column jacket of the 6th of the 1st embodiment of the present invention and representing, (b) is Side view.
Figure 12 is the F-F sectional views in Figure 11 (b).
Figure 13 be the 6th of first embodiment of the present invention with Fig. 1 identical sectional views.
Figure 14 is the side view for only taking out the column jacket of the 7th of the 1st embodiment of the present invention and representing.
Figure 15 is the G-G sectional views in Figure 14.
Figure 16 is the side view for only taking out the column jacket of the 8th of the 1st embodiment of the present invention and representing.
Figure 17 (a) is the H-H sectional views in Figure 16, and (b) is the I-I sectional views in Figure 16.
Figure 18 is the side view for only taking out the column jacket of the 9th of the 1st embodiment of the present invention and representing.
Figure 19 (a) is the J-J sectional views in Figure 18, and (b) is the K-K sectional views in Figure 18.
Figure 20 is the partial side view of the 10th for representing the 1st embodiment of the present invention.
Figure 21 is the side view for only taking out the column jacket of the 10th of the 1st embodiment of the present invention and representing.
Figure 22 (a) is the L-L sectional views in Figure 21, and (b) is the M-M sectional views in Figure 21.
Figure 23 is the N-N sectional views in Figure 20.
Figure 24 be represent the 11st of the 1st embodiment of the present invention with Figure 23 identical sectional views.
Figure 25 is the side view for only taking out the column jacket of the 12nd of the 1st embodiment of the present invention and representing.
Figure 26 (a) is the O-O sectional views in Figure 25, and (b) is the P-P sectional views in Figure 25.
Figure 27 is the side view for only taking out the column jacket of the 13rd of the 1st embodiment of the present invention and representing.
Figure 28 (a) is the Q-Q sectional views in Figure 27, and (b) is the R-R sectional views in Figure 27.
Figure 29 be represent the 14th of the 1st embodiment of the present invention with Fig. 1 identical figures.
Figure 30 be represent the 15th of the 1st embodiment of the present invention with Fig. 1 identical figures.
Figure 31 (a) is the side view for only taking out the column jacket of the 16th of the 1st embodiment of the present invention and representing, (b) It is to represent to be formed at the upward view of the 1st of the elongated hole of outer column bottom, (c) is the upward view of the 2nd for representing elongated hole.
Figure 32 is the S-S sectional views in Figure 31.
Figure 33 (a) is the side view for only taking out the column jacket of the 17th of the 1st embodiment of the present invention and representing, (b) It is represent to be formed on the rear end side connecting portion for linking the outer peripheral face of the rearward end of displacement side stand and column jacket the 1st of elongated hole The upward view of example, (c) is the upward view of the 2nd for representing elongated hole.
Figure 34 is the side view for only taking out the column jacket of the 18th of the 1st embodiment of the present invention and representing.
Figure 35 is the T-T sectional views in Figure 34.
Figure 36 is the sectional view of the 1st for representing the 2nd embodiment of the present invention.
Figure 37 is the major part exploded perspective view of the 1st of second embodiment of the present invention.
Figure 38 is the figure of the order for the assembling procedure for representing the r portions in Figure 36.
Figure 39 (A) is the stereogram of the 1st friction member, and (B) is the end view drawing observed from fore-and-aft direction, (C) be from (B) inner side view that left is observed, (D) is the outer side view observed from the right in (B), under (E) is from (B) The upward view that side is observed.
Figure 40 (A) is the stereogram of the 2nd friction member, and (B) is the end view drawing observed from fore-and-aft direction, (C) be from (B) outer side view that the right in is observed, (D) is the upward view observed from the lower section in (C).
Figure 41 is the side view of cushion collar.
Figure 42 is the major part exploded perspective view of the 2nd of second embodiment of the present invention.
Figure 43 (A) is the stereogram of the 1st friction member, and (B) is top view, and (C) is observed from the lower section in (B) Outer side view, (D) is the fore-and-aft direction end view drawing observed from the right in (C), and (E) is observed from the lower section in (C) Upward view.
Figure 44 is the 3rd (C) identical figure with Figure 38 for representing the 2nd embodiment of the present invention.
Figure 45 be represent the 4th of the 2nd embodiment of the present invention with Figure 36 identical figures.
Figure 46 is the partial, partially-cross-sectioned side-elevation view of 1 for representing automobile-use telescopic steering apparatus.
Figure 47 is the longitudinal cross-sectional side view of the 1st for representing conventional steering axle device.
Figure 48 is the U-U amplification views in Figure 47.
Figure 49 be represent the 2nd of conventional steering axle device with Figure 48 identical sectional views.
Figure 50 is the front view for only taking out the column jacket of the 3rd of conventional steering axle device and representing.
Figure 51 is the partial, partially-cross-sectioned side-elevation view of the 4th for representing conventional steering axle device.
Figure 52 is the V-V sectional views in Figure 51.
Embodiment
[the 1st of the 1st embodiment]
Fig. 1~Fig. 3 represents the 1st of the 1st embodiment of the present invention.Including this example, steering column dress of the invention Put and be characterised by, have studied the construction this point for the column jacket for constituting steering column.In addition, the present invention can be applied to telescopic turn To the construction of device, the construction of the telescopic steering apparatus, which is removed, to be included being used to adjust the telescoping mechanism of the front and back position of steering wheel 1 Outside, in addition to for adjusting the leaning device of upper-lower position.Construction and telescopic beyond the characteristic of the present invention in the past Transfer and roughly the same applied to the construction of the steering axle device of the telescopic steering apparatus, therefore for same The part that ground is constituted, is omitted or simplified diagram and illustrated, below, illustrated centered on the characteristic of this example.
The telescopic steering apparatus of this example includes steering spindle 5, steering column 41, fixed side stand 44, displacement side stand 45, bar Shape component 19 and adjusting rod 18.Steering spindle 5 is provided with steering wheel 1 in rearward end, and is supported on steering in a rotatable manner The inside of post 41.
Steering column 41 includes column jacket 42 and inner prop 43.Wherein, in the steering column 41, column jacket 42 is used as the side of steering wheel 1 Upper post, inner prop 43 as the side away from direction disk 1 lower post.
Column jacket 42 is the tubular that at least axially the internal diameter of a part flexibly can expand and reduce, in the internal diameter of column jacket 42 Side is provided with support 46, and the support 46 is used for the chimeric supporting inner prop 43 of mode that can be axially displaced with inner prop 43.
The support 46 is made up of protrusion 47a, 47b, protrusion 47a, 47b in the inner peripheral surface of column jacket 42 along footpath To at equally spaced 3 positions of the circumferencial direction of the part overlapping with inner prop 43, with what is protruded from the inner circumferential towards radially inner side State is formed.Also, the position being along the circumferential direction aligned with above-mentioned protrusion 47a, 47b in the outer peripheral face of column jacket 42, It is formed with the recess 48 being recessed from the periphery towards radially inner side.Also, above-mentioned protrusion 47a, 47b top edge is (radially Inside edge) abutted with the outer peripheral face of inner prop 43.In addition, adding from protrusion 47a, 47b that support 46 is constituted without improving Make to work precision from the viewpoint of protrusion 47a, 47b top ends reliably abut with the outer peripheral face of inner prop 43, it is preferably above-mentioned Protrusion 47a, 47b quantity be this example in 3.But, it is contemplated that the balance of processing cost etc., can also will be above-mentioned Protrusion 47a, 47b quantity are formed as being more than 3 (such as left and right each two, altogether 4).In addition, formation protrusion 47a, 47b position is not limited to the equally spaced position of circumferencial direction of the inner peripheral surface of column jacket 42.However, it is preferred to not be biased in semicircle The week side of boss but be distributed to more than in the range of semi-circumference.
The column jacket 42 (including support 46) is formed by method of hydroforming work bulging shaping, the hydraulic pressure Forming and machining method is：Hydraulic pressure is applied (for example to the inner peripheral surface of steel plate system or the metal tube as hollow member of aluminium alloy Hydraulic pressure), the metal tube is plastically deformed to radial outside.The side that the bulging of column jacket 42 shapes is made by method of hydroforming work In method, for example, the metal pattern of the inner surface configuration matched in the external surface shape with the column jacket 42 with wanting expanding manufacture It is interior, the metal tube as raw material is placed, the two ends of the metal tube are blocked using axle pressure instrument etc., is applied into the metal tube The hydraulic pressure of high pressure, makes the metal tube expanding untill the inner surface of die cavity of metal pattern is close to radial outside, is consequently formed outer Post 42., can also be to constituting protrusion 47a, 47b of support 46 in addition, after being shaped by method of hydroforming work Top ends implement machining or punch process.In addition, the method for shaping the bulging of column jacket 42 is not limited to hydroforming and added Work method, can using punch process, bulging processing, vacuum forming, blow molding, explosive forming etc. it is arbitrary for bulging into The method of shape.
Fixed side stand 44 is located at vehicle body 10 or is fixed on the part of the vehicle body 10, including pair of right and left supporting board 28, The part 49 that the pair of right and left supporting board 28 internal diameter that both sides are clipped in column jacket 42 in the width direction can expand and reduce.
Displacement side stand 45 is integrally formed by method of hydroforming work with column jacket 42, is pressed from both sides by a pair of supporting boards 28 Hold, with being capable of a pair of expansion and contraction clamped portion 50, a pair of angled portions 51 in the width direction.It is clamped the respective of portion 50 One end be connected with the formation in protrusion 47a, 47b of column jacket 42 in the protrusion 47b of lower section lower end, and clamped portion 50 Be formed as almost parallel with a pair of supporting boards 28.In addition, the position being mutually aligned in above-mentioned clamped portion 50, difference shape Into the post side through hole (fore-and-aft direction elongated hole) 29 for having the length in the axial direction of column jacket 42.Respective one end of rake 51 is with being clamped The other end in portion 50 is connected, and rake 51 is on width (left and right directions in Fig. 1) in mode close to each other (in Fig. 1 Obliquely downward) extension, and via connecting portion 52 make the respective other end be connected.
Rod component 19 (is illustrated and saved with the vehicle body side through hole for being penetratingly formed at the position being mutually aligned of supporting board 28 Slightly) and clamped portion 50 post side through hole 29 state, arrange in the width direction.In addition, in one end (Fig. 1 of rod component 19 In left end), provided with the head 53 as pressing portion.Also, in the other end (right side in Fig. 1) of rod component 19, certainly The part that the lateral surface (right flank in Fig. 1) of the supporting board 28 of fixed side stand 44 is protruded, has been screwed as pushing The back nut 54 of component.Also, the base end part of adjusting rod 18, which is combined, is fixed on back nut 54.Therefore, if according to regulation While the operation of bar 18 makes the rotation of rod component 19, back nut 54 is rotated, make the back nut 54 with head 53 in width The interval occurred change (expand and reduce) spent on direction, then can make the interval between supporting board 28 expand and contract It is small.In addition, being used to make the mechanism for being spaced expansion and diminution between supporting board 28 as, except that can use Make outside the construction that rod component 19 combines with back nut 54, additionally it is possible to samely using making rod component 19 and cam The construction of device combination.
In the position adjustments of the fore-and-aft direction of travel direction disk 1, adjusting rod 18 is rotated along defined direction, expand branch Hold nut 54 and the interval of head 53 in the direction of the width.Thus, the medial surface of a pair of supporting boards 28 of fixed side stand 44 Expand, the medial surface of above-mentioned supporting board 28 and the clamped portion 50 of displacement side stand 45 spacing elastic each other The surface pressing of abutting part between lateral surface reduces or disappeared.Therewith together, the support 46 of column jacket 42 and inner prop 43 is outer The surface pressing of fitting portion between side face reduces or disappeared, and column jacket 42 and inner prop 43 turn into being capable of (fore-and-aft direction) phase vertically To the state of displacement.As a result, it is possible to adjust the position of the fore-and-aft direction of steering wheel 1.
In addition, after position adjustments, if making adjusting rod 18 be rotated along with defined direction in opposite direction, back nut 54 interval with head 53 in the direction of the width reduces.Thus, the mutual interval of the medial surface of supporting board 28 reduces, above-mentioned The surface pressing of the medial surface of supporting board 28 and the abutting part of the lateral surface in clamped portion 50 increases.Therewith together, column jacket 42 Support 46 and inner prop 43 outer peripheral face between fitting portion surface pressing increase.As a result, it is possible to which steering wheel 1 is supported on Position after regulation.
In addition, in the case where applying the present invention to the construction that column jacket is lower post, inner prop is upper post, with column jacket one The shape of the post side through hole of the displacement side stand formed is not elongated hole (fore-and-aft direction elongated hole) long in the axial direction body, but energy Enough run through the circular hole of rod component.
In the case of the steering axle device of this example, column jacket 42 including support 46 and integratedly set with column jacket 42 The displacement side stand 45 put is formed by method of hydroforming work shaping.Therefore, compared with construction in the past, processing can be realized The reduction of cost.
In addition, making the outer peripheral face of the support 46 of the inner peripheral surface located at column jacket 42 inner prop 43 overlapping with the support 46 Only abutted at 3 positions of circumferencial direction.Therefore, it is possible to the processing without improving protrusion 47a, 47b for constituting support 46 Above-mentioned protrusion 47a, 47b is set to precision reliably to be abutted with the outer peripheral face of inner prop 43.In addition, only being added by hydroforming In the case of work method can not make the machining accuracy of support 46 sufficiently high, to protrusion 47a, 47b of support 46 top Implement machining in portion.But, in the case of this example, above-mentioned protrusion 47a, 47b quantity is only 3.Therefore, as long as Make protrusion 47a, the 47b at 3 each position inscribe diameter of a circle identical in the axial direction, therefore machining, punching press add The finishing such as work will not become trouble.In addition, protrusion 47a, 47b for constituting support 46 are passed through into method of hydroforming work Be formed as the shape of chevron.Therefore, compared with the construction shown in Figure 50, it is possible to increase firm for what is supported to inner prop 43 Property.
[the 2nd of the 1st embodiment]
Fig. 4 and Fig. 5 represent the 2nd of the 1st embodiment of the present invention.The situation of the steering axle device of this example with the 1st Similarly by column jacket 42a configurations at the rear of inner prop 43.And in the same manner as the 1st, in the position being integrally provided with column jacket 42a The position being mutually aligned for moving side stand 45a clamped portion 50a is respectively formed with post side through hole 29 long in the axial direction.
On the position being aligned in the axial direction with these post side through hole 29, displacement side stand 45a rake 51a and fixation The supporting board 28 of side stand 44 pushes the direction α angulations more rearward (right side in Fig. 4 that (clamping) is clamped portion 50a Side) go it is bigger.
That is, on the position axially aligned with the part held rearward of post side through hole 29, displacement side stand 45a inclination Portion 51a pushes the direction α angulations θ that (clamping) is clamped portion 50a with supporting board 282((b) of reference picture 5) is more than angle Spend θ1((a) of reference picture 5) (θ2＞ θ1), above-mentioned angle, θ1It is axially aligned with the part at the forward end of post side through hole 29 On position, displacement side stand 45a rake 51a and supporting board 28 push (clamping) be clamped portion 50a direction α institute into Angle.Wherein, displacement side stand 45a rake 51a pushes the direction α institutes that (clamping) is clamped portion 50a with supporting board 28 Into angle continuously change from front direction rear.
The inner peripheral surface and inner prop of on the position being aligned in the axial direction with post side through hole 29, rake 51a connecting portion 52 The distance between 43 outer peripheral face more rearward goes bigger.That is, the part held rearward with post side through hole 29 is axially aligned The lower end of the outer peripheral face of on the position, inner peripheral surface of connecting portion 52 and inner prop 43 apart from L2((b) of reference picture 5) is more than and post The lower end of the outer peripheral face of on the position of the part alignment at the forward end of side through hole 29, the inner peripheral surface of connecting portion 52 and inner prop 43 it Between apart from L1((a) of reference picture 5) (L1＜ L2)。
In the case of the telescopic steering apparatus of this example, on displacement side stand 45a clamped portion 50a width Rigidity more rearward go it is lower.Therefore, it is possible to the length of part that is not axially overlapped according to column jacket 42a and inner prop 43 compared with The earth changes the operating physical force for putting on adjusting rod 18, the operability stablized.As a result, it is possible to give inner prop 43 stable supporting Rigidity (fastening force).
That is, in the case where not implementing any countermeasure, the axial length in the column jacket part radially overlapping with inner prop is long Situation (rod component 19 is present in the situation of the part held rearward of post side through hole 29) under, reduce clamped portion each other in width Power (operating physical force for putting on adjusting rod 18) required for spending the distance on direction becomes big.On the other hand, in column jacket and inner prop edge (rod component 19 is present in the feelings of the part at the forward end of post side through hole 29 to the short situation of the axial dimension of radially superposed part Condition) under, the power required for reducing the clamped distance of portion each other in the direction of the width is smaller.If like this according to column jacket with it is interior The axial dimension of the radially overlapping part of post and the operating physical force that puts on adjusting rod 18 is different, then adjust the front and rear of steering wheel 1 Operability (operation sense) during the position of direction is unstable.
If in contrast, making as the construction of this example on displacement side stand 45a clamped portion 50a width Rigidity more rearward go it is lower, then with the overlap condition of column jacket 42a and the radial direction of inner prop 43 independently, fixed column jacket 42a with it is interior The tightening torque of adjusting rod 18 required for post 43 will not be significantly different, can realize the operational stabilization of adjusting rod 18 Change.As a result, it is possible to give inner prop 43 stable supporting rigidity (fastening force).Others construction and effect are identical with the 1st.Separately Outside, the construction that the chimeric depth according to column jacket and inner prop of this example changes the rigidity of the part being pushed in column jacket also can Applied to the conventional construction shown in Figure 46~Figure 52.
[the 3rd of the 1st embodiment]
Fig. 6 and Fig. 7 represent the 3rd of the 1st embodiment of the present invention.The situation of the steering axle device of this example is also will be outer Post 42b is configured at the rear of inner prop 43.In addition, in the clamped portion for the displacement side stand 45b being integrally provided with column jacket 42b The 50b part being mutually aligned, is respectively formed with post side through hole 29 long in the axial direction.In addition, the one of these clamped portion 50b End (lower end in Fig. 6) is connected in the width direction via flat bottom 55.The rear end side of bottom 55 is via the edge of connecting portion 56 Axially it is connected with column jacket 42b outer peripheral face.With a pair of post side through hole 29 on axially aligned position, the inner surface of bottom 55 Apart from L on whole axial direction it is certain with the lower end of the outer peripheral face of inner prop 43.Others construction and effect and the 1st embodiment party The 1st of formula is identical.
[the 4th of the 1st embodiment]
Fig. 8 and Fig. 9 represent the 4th of the 1st embodiment of the present invention.Constitute the column jacket 42c of the steering axle device of this example Column jacket 42b identical basic structures with the 3rd with the 1st embodiment.In this example, as shown in Fig. 8 (b) or (c), On column jacket 42c, displacement side stand 45c bottom 55 width center, at least with post side through hole 29 it is right vertically Accurate position, is formed with elongated hole 57 long in the axial direction, 57a.
Elongated hole 57 shown in Fig. 8 (b) makes position on its axial direction and post side through hole 29 substantially uniform.On the other hand, Fig. 8 (c) shown in elongated hole 57a axial direction on size be more than size in the axial direction of post side through hole 29 and elongated hole 57.That is, elongated hole 57a is vertically from the axial forward end than post side through hole 29 of bottom 55 position on the front, via after the axial direction for making the bottom 55 Hold the connecting portion 56 being connected with column jacket 42c outer peripheral face, form the outer peripheral face for arriving column jacket 42c.In addition, such elongated hole 57, 57a also can simultaneously be formed (with reference to Japanese Unexamined Patent Publication 2006-255785 publications) by method of hydroforming work.
In the case of the steering axle device of this example, elongated hole 57,57a are formed on displacement side stand 45c bottom 55, by This, makes the rigidity reduction on the bottom 55 and clamped portion 50b width.Particularly, if as shown in Fig. 8 (c) Elongated hole 57a is set to be formed from bottom 55 via connecting portion 56 that the rearward end of the bottom 55 is connected with column jacket 42c outer peripheral face is made To column jacket 42c outer peripheral face, then the rigidity by rear end part of bottom 55 and clamped portion 50b can be fully reduced.In addition, This example can be implemented in the mode combined with each example of the 1st embodiment.Particularly, make this example with the 1st embodiment The 1st or the 2nd combination mode implement in the case of, rake 51 (51a) be the part suitable with bottom 55.In addition, This example can be independently applied with the supporting construction of column jacket and inner prop.Others construct and acted on the 1st with the 1st embodiment And the 2nd identical.
[the 5th of the 1st embodiment]
Figure 10 represents the 5th of the 1st embodiment of the present invention.Constituting the column jacket 42d of the steering axle device of this example has With the column jacket 42b identical essential structures of the 3rd of the 1st embodiment.Particularly, in the case of this example, in column jacket 42d In, in the displacement side stand 45d axial rearward end portion (connection for making the axial rearward end of bottom 55 be connected with column jacket 42d outer peripheral face The leading section in portion 56) be formed with elongated hole 58, the clamped portion 50b of the My World of elongated hole 58 via bottom 55 in the width direction with separately The clamped portion 50b of one side is connected.
According to the steering axle device of this example, on the width in the axial rearward end portion that can reduce displacement side stand 45d Rigidity.That is, in displacement side stand 45d axial rearward end portion, there is connecting portion 56, therefore compared with axial forward end portion, width side Upward rigidity is high.So, form elongated hole 58 and make the rigidity drop on the width in displacement side stand 45d axial rearward end portion It is low.As a result, the overlap condition (axial dimension of lap) regardless of column jacket 42d and inner prop 43 radially, fixed column jacket 42d will not be significantly different from the tightening torque of the adjusting rod 18 required for inner prop 43, realize the operational of the adjusting rod 18 Stabilize.In addition, this example can be implemented in the mode combined with each example of the 1st embodiment.Others construction and effect with The 3rd of 1st embodiment is identical.
[the 6th of the 1st embodiment]
Figure 11~Figure 13 represents the 6th of the 1st embodiment of the present invention.Constitute the displacement side of the steering axle device of this example The state that support 45e is protruded upward with the leading section from column jacket 42e is set.Displacement side stand 45e has and the 1st embodiment party The displacement side stand 45c of the 4th of formula radially (above-below direction) substantially symmetric constructions, plate portion is clamped by pair of right and left 50c and bottom 55a is constituted.
The state that clamped plate portion 50c is extended upward with the main part from column jacket 42e is set, parallel to each other.In addition, Bottom 55a is so that a clamped plate portion 50c ora terminalis (upper edge in Figure 12 and Figure 13) connected shape in the width direction each other State is set.In addition, in the same manner as the 4th of the 1st embodiment, displacement side stand 45e clamped plate portion 50c it is mutual right Accurate part, is respectively formed with post side through hole 29 long in the axial direction.
Since the front-end edge (left side in Figure 11) in displacement side stand 45e bottom 55a width center, via The connecting portion 56a that the axial rearward end and column jacket 42e outer peripheral face for making bottom 55a are connected, to column jacket 42e outer peripheral face position Put, be formed with elongated hole 57b long in the axial direction.In addition, elongated hole 57b also can be as shown in Fig. 8 (b) elongated hole 57 or Fig. 8 (c) shown in elongated hole 57a like that, be front block shape.In addition, the construction of this example also can with the 1st embodiment party The mode that the construction of each example of formula is combined is implemented.
The column jacket 42e for constituting the steering axle device of this example is assembled with the state shown in Figure 13.In the state assembled like this Under, the action during position adjustments of the fore-and-aft direction of travel direction disk 1 and when steering wheel 1 is fixed on into the position after position adjustments Action, the action with the device of the 1st of the 1st embodiment is identical.
In the case of this example, the state that displacement side stand 45e is protruded upward with the leading section from column jacket 42e is set. Therefore, rod component 19 is not configured in the lower section of outer post 42e leading section, and can easily realize can prevent with driver's The design of the construction of the interference such as knee.Others construction and effect are identical with the 4th of the 1st embodiment.
[the 7th of the 1st embodiment]
Figure 14 and Figure 15 represent the 7th of the 1st embodiment of the present invention.Constitute the column jacket of the steering axle device of this example 42f has the column jacket 42c identical essential structures with the 4th of the 1st embodiment.In this example, on column jacket 42f, at this Part in column jacket 42f, vertically, from the axial central portion than post side through hole 29 somewhat rearward, to more collateral than displacement Frame 45f axial rearward end portion (leading section for the connecting portion 56 that the axial rearward end and column jacket 42f outer peripheral face for making bottom 55 are connected) Somewhat rearward untill, be formed with a pair of in the axial direction long column length holes 59.In addition, the axial forward end position in these column length holes 59 The position in this example is not limited to, the front end position on the front than post side through hole 29 can be also formed.
Column length hole 59 is formed in following location：On column jacket 42f circumferencial direction, displacement side stand is leaned on than contemplating plane α 45f sides (lower section in Figure 14 and Figure 15), in addition, the formation in protrusion 47a, 47b than constituting support 46 is in lower section Protrusion 47b by the top, the inscribed circle (outer peripheral face of inner prop 43) that the imagination plane α passes through column jacket 42f support 46 Central axis O42fAnd it is orthogonal with the supporting board 28 of fixed side stand 44.
In addition, in the case of this example, column length hole 59 is formed at column jacket 42f two positions of circumferencial direction, but formed The position in these column length holes 59 or quantity of formation etc. are it can be considered that the column jacket 42f supporting rigidity (fastening force) relative to inner prop 43 Deng appropriate decision.
According to the steering axle device of this example, the displacement side stand for the position being aligned vertically with column length hole 59 can be reduced The rigidity of 45f in the direction of the width.Particularly, connecting portion 56 is there are in displacement side stand 45f axial rearward end portion, because This, compared with axial forward end portion, the rigidity on width is high.So, in the case of this example, make the rearward end in column length hole 59 Position in the axial direction is than connecting portion 56 somewhat rearward.Therefore, it is possible to reduce displacement side stand 45f axial rearward end portion in width The rigidity spent on direction.In addition, this example can be implemented in the mode combined with each example of the 1st embodiment.Others construction And act on identical with the 4th of the 1st embodiment.
[the 8th of the 1st embodiment]
Figure 16 and Figure 17 represent the 8th of the 1st embodiment of the present invention.Constitute the column jacket of the steering axle device of this example 42g has the column jacket 42c identical essential structures with the 4th of the 1st embodiment.In this example, column jacket 42g support 46a is made up of front side support 60 and rear side support 61.Front side support 60 and rear side support 61 are arranged on as follows Position：, also can be interior with this in the state of the axial dimension of part radially overlapping with inner prop 43 column jacket 42g is most short The outer peripheral face of post 43 is abutted.
Front side support 60 is made up of protrusion 47c, 47d, protrusion 47c, 47d with from column jacket 42g inner circumferential towards The state formation that radially inner side is protruded is in following location：It is in column jacket 42g inner peripheral surface, from column jacket 42g leading section in place Move the part at the forward end of side stand 45g post side through hole 29, equally spaced 3 positions of circumferencial direction of axially aligned position Put.In addition, in column jacket 42g outer peripheral face, the position that is along the circumferential direction aligned with protrusion 47c, 47d, be formed with from this The recess 48a that periphery is recessed towards radially inner side.
On the other hand, rear side support 61 is made up of in the same manner as front side support 60 protrusion 47e, 47f, the protrusion 47e, 47f are formed in following location with the state protruded from column jacket 42g inner circumferential towards radially inner side：Column jacket 42g inner peripheral surface In, the part held rearward of post side through hole 29 from displacement side stand 45g, to the rearward end from the post side through hole 29 slightly towards Rear is positioned away from, equally spaced 3 positions of circumferencial direction of axially aligned position.In addition, in column jacket 42g periphery Position in face, being along the circumferential direction aligned with above-mentioned protrusion 47e, 47f, is formed with recessed from the periphery towards radially inner side Sunken recess 48b.
In addition, in column jacket 42g inner peripheral surface, the part between front side support 60 and rear side support 61 vertically The outer peripheral face with inner prop 43 is not abutted.In the case of this example, protrusion and recess are not formed in the part, column jacket 42g's Outer peripheral face is directly connected to displacement side stand 45g.
In the case of the steering axle device of this example, regardless of the column jacket 42g states radially overlapping with inner prop 43, profit With the support 46a for constituting the column jacket 42g front side support 60 and rear side support 61, in identical two all the time vertically Position supports inner prop 43.Therefore, between inner prop 43 and column jacket 42g, though for example along the vertical direction apply make inner prop 43 with During the torque in the direction that column jacket 42g central axis inclines towards each other etc., it can also utilize front side support 60 and rear side support 61 stably support inner prop 43.In addition, this example can be implemented in the mode combined with each example of the 1st embodiment.It is other Construction and effect are identical with the 4th of the 1st embodiment.
[the 9th of the 1st embodiment]
Figure 18 and Figure 19 represent the 9th of the 1st embodiment of the present invention.Constitute the column jacket of the steering axle device of this example 42h has the column jacket 42a identical essential structures with the 2nd of the 1st embodiment.In this example, column jacket 42h support 46a is made up of front side support 60 and rear side support 61.Front side support 60 and rear side support 61 are arranged on to be implemented with the 1st The construction identical position of the 8th of mode, the axial dimension in part radially overlapping with inner prop 43 column jacket 42h is most short Under state, front side support 60 and rear side support 61 can be abutted with the outer peripheral face of the inner prop 43.In addition, this example can be with Combined mode is implemented with each example of the 1st embodiment.Others construct and acted on the 2nd and the 8th with the 1st embodiment Example is identical.
[the 10th of the 1st embodiment]
Figure 20~Figure 23 represents the 10th of the 1st embodiment of the present invention.The construction of the steering axle device of this example and the 1st The difference of the construction of the device of each example of embodiment is, provided with the 1st friction plate 62 and the 2nd friction plate 63, in addition, in order to These friction plates 62,63 are set, and have studied displacement side stand 45h construction.
The column jacket 42i for constituting the steering axle device of this example is identical with each example of the 1st embodiment, is at least axially a part of The internal diameter tubular that flexibly can expand and reduce, there is support 46b in column jacket 42i internal side diameter, support 46b For the chimeric supporting inner prop 43 of mode that can be axially displaced with inner prop 43.
Support 46b is made up of front side support 60a and rear side support 61a.Front side support 60a and rear side branch Position in bearing portion 61a axial direction is identical with the construction of the 8th of the 1st embodiment.
Front side support 60a is made up of protrusion 47g, 47h, protrusion 47g, 47h with from column jacket 42i inner circumferential towards The state formation that radially inner side is protruded is in following location：It is in column jacket 42i inner peripheral surface, from column jacket 42i leading section to The part at the forward end of displacement side stand 45h post side through hole 29, equally spaced 3 of the circumferencial direction of axially aligned position Position.One position of the top of the Figure 22 of protrusion 47g formation in inner peripheral surface (a).On the other hand, protrusion 47h shapes Two positions that Cheng Cong protrusions 23g along the circumferential direction equally spaced offsets and (offsets 120 ° in the case of this example).Also, Above-mentioned protrusion 47g, 47h top edge (radial inside edge) is abutted with the outer peripheral face of inner prop 43.
On the other hand, rear side support 61a is made up of in the same manner as the support 60a of front side protrusion 47i, 47j, the protuberance Portion 47i, 47j are formed in following location with the state protruded from column jacket 42i inner circumferential towards radially inner side：In column jacket 42i The part held rearward of post side through hole 29 in side face, from displacement side stand 45h to the end edge from the post side through hole 29 slightly It is micro- rearward position away from untill, equally spaced 3 positions of circumferencial direction of axially aligned position.Protrusion 47i shapes Into at a position of the top of (b) in Figure 22 in inner peripheral surface.On the other hand, protrusion 47j formation is from protrusion At two positions that 47i along the circumferential direction equally spaced offsets and (offsets 120 ° in the case of this example).Also, above-mentioned protuberance Portion 47i, 47j top edge (radial inside edge) are abutted with the outer peripheral face of inner prop 43.In addition, in column jacket 42i inner peripheral surface, Vertically, outer peripheral face of the part between front side support 60a and rear side support 61a not with inner prop 43 is abutted.
In the case where column jacket 42i is the assembled state shown in Figure 23, make width (Figure 23 in column jacket 42i outer peripheral face In left and right directions) both ends of the surface abut with the medial surface of the supporting board 28 of fixed side stand 44.By so, making width On supporting rigidity increase, steering column 41 is difficult to vibrate in the width direction.
In support 60a, rear side support 61a protrusion 47g, 47h (47i, 47j) on front side of composition, formed in figure The protrusion 47h (47j) of lower section in 22 and Figure 23 is abutted with the outer peripheral face of inner prop 43 in following location, i.e.,：Relative to through The center line O of the inner prop 4343And the imagination plane α orthogonal with supporting board 28, to displacement side stand 45h sides (under in Figure 23 Side) tilt angle theta (being in the case of this example 30 °) position.The angle, θ is bigger, i.e., forms the grand of lower section in fig 23 The size risen on portion 47h (47j) mutual width is smaller, then more can increase the supporting on column jacket 42i above-below direction Rigidity, and more can improve displacement side stand 45h formability.But, if angle, θ is excessive, supporting in the direction of the width Rigidity lowers.Accordingly, it is considered to which thickness of supporting rigidity, the 1st friction plate 62 and the 2nd friction plate 63 required for all directions etc., is fitted Locality determines the size of the angle, θ.
In the case of this example, the state that displacement side stand 45h is protruded downwards with the leading section from column jacket 42i is set, It includes being capable of edge along with a pair of supporting boards 28 of fixed side stand 44 expansion and contraction in the direction of the width are constituted The clamped portion 50d and bottom 55b of a pair of width expansion and contraction.In addition, in the supporting board 28 of fixed side stand 44 The position shape being mutually aligned, into have can through rod component 19 vehicle body side through hole 64 long in the vertical direction.Thus, As the transfer including leaning device, steering column 41, which is supported, to be set in the width direction relative to vehicle body 10 Swing displacement (reference picture 47) is carried out centered on pivot 11.
Clamped portion 50d respective one end is with the formation in column jacket 42i protrusion 47g, 47h (47i, 47j) under Protrusion 47h, 47j of side lower end are connected, and clamped portion 50d is formed as almost parallel with a pair of supporting boards 28.In addition, In column jacket 42i, the front side support 60a on axial direction and the part between rear side support 61a, by column jacket 42i width The both ends in direction (left and right directions in Figure 22 and Figure 23) are to bending on the inside of width, the upper edge with clamped portion 50d It is connected.In addition, the size W on the mutual width of width medial surface of supporting board 28 is with length D and TALLSum is big Cause identical (W ≈ D+TALL), wherein, width (left and right directions in Figure 23) lateral surface that D is clamped portion 50d is mutual Length, TALLIt is the thickness T of the 1st whole friction plates 6262With the thickness T of each 2nd friction plate 6363Sum (TALL=2T62+ 2T63).In addition, in the clamped portion 50d position being mutually aligned, being respectively formed with post side through hole 29 long in the axial direction.
Bottom 55b is so that the state that clamped portion 50d lower ora terminalis is connected with each other is set.Therefore, displacement side stand 45h is Lower section and the box-like of front openings.In addition, the width of the width medial surface and clamped portion 50d in supporting board 28 Part between lateral surface, is configured with the 1st friction plate 62 and the 2nd friction plate 63.In the case of this example, these parts all with The mode that 2nd friction plate 63 turns on the inside of the width of the 1st friction plate 62 configures the 1st friction plate 62 and one the 2nd is rubbed Wiping board 63.In addition, these 62,63 position relationships in the direction of the width of friction plate also can be opposite with the situation of this example.
1st friction plate 62 is the light-alloy such as iron class alloy system or aluminium class alloy, magnesium class alloy, long in the longitudinal direction Tabular component.In addition, in the 1st friction plate 62, the position that is at least aligned with clamped portion 50d post side through hole 29, shape Can be through rod component 19, long the 1st friction plate side through hole 65 in the longitudinal direction into having.1st friction plate 62 is rearward The part at the part at end and forward end by pilot pin 66 with following state support in clamped portion 50d, the state is：Line width can be entered The displacement in direction is spent, but the displacement of axial direction and above-below direction is prevented from.That is, the 1st friction plate 62 is with can be with displacement side stand 45h Vertically and the state support that moves in linkage of above-below direction is in displacement side stand 45h.
On the other hand, the 2nd friction plate 63 is the tabular structure of the light-alloy such as iron class alloy system or aluminium class alloy, magnesium class alloy Part.In addition, in the middle position of the 2nd friction plate 63, being formed with can be rubbed with the degree do not rocked through the 2nd of rod component 19 Wiping board side through hole 67.That is, run through in the 2nd friction plate side through hole 67 in the state of rod component 19, the 2nd friction plate 63 can Carry out the displacement in the axial direction of the movement and rod component 19 linked with the rod component 19.
The column jacket 42i and the 1st friction plate 62, the 2nd friction plate 63 of the steering axle device of this example are constituted with as shown in Figure 23 State assembling.In the state of each component is assembled like that as shown in figure 23, in the position of the fore-and-aft direction of travel direction disk 1 During regulation, adjusting rod 18 is rotated along defined direction, make the conduct located at one end (right-hand member in Figure 23) of rod component 19 The back nut 54 of biasing member and located at rod component 19 the other end the head 53 as biasing member in width On interval expand.Thus, expand, these supporting boards the 28, the 1st rub the mutual spacing elastic of the medial surface of supporting board 28 Wiping board 62, the 2nd friction plate 63, clamped portion 50d, the mutual abutting part of these components surface pressing reduce or disappeared.With Accompany, the Qian He of column jacket 42i support 46b (front side support 60a, rear side support 61a) and the outer peripheral face of inner prop 43 The surface pressing in portion reduces or disappeared, and column jacket 42i turns into the state for being capable of (fore-and-aft direction) relative displacement vertically with inner prop 43. As a result, it is possible to adjust the fore-and-aft direction of steering wheel 1 and the position of above-below direction.
After position adjustments, if making adjusting rod 18 be rotated along with defined direction in opposite direction, back nut 54 with Interval between head 53 reduces.Thus, the mutual interval of the medial surface of supporting board 28 reduces, these supporting boards the 28, the 1st Friction plate 62, the 2nd friction plate 63, clamped portion 50d, the mutual abutting part of these components surface pressing become big.Phase therewith Companion, column jacket 42i support 46c (front side support 60a, rear side support 61a) and the fitting portion of the outer peripheral face of inner prop 43 Surface pressing becomes big.As a result, steering wheel 1 is supported into position after adjustment.In addition, being used to support on direction disk 1 When the operation of the position after regulation, except the medial surface using supporting board 28 is pushed away via the 1st friction plate 62, the 2nd friction plate 63 Outside the clamped portion 50d of pressure, the width two in column jacket 42i outer peripheral face is pushed by using the medial surface of supporting board 28 End face, can also make column jacket 42i internal diameter expand and reduce.
In the case of the steering axle device of this example, the portion between the medial surface and clamped portion 50d of supporting board 28 Point, it is equipped with the 1st friction plate 62 and the 2nd friction plate 63.Therefore, supporting board 28, the 1st friction plate 62, the 2nd friction plate 63, quilt The summation of clamping part 50d, the mutual abutting part of these components friction area becomes big, being capable of increasing friction force.As a result, it is possible to Steering wheel 1 is stably supported into position after adjustment.In addition, the number of friction plate 62,63 can be made to be more than the situation of this example, It is used in and keeps the confining force of position after adjustment further to increase on steering wheel 1.In addition, the support 46b of this example also can Enough constructions being integrated as support 46 using front side and rear side.In addition, this example can be with each example with the 1st embodiment Combined mode is implemented.Others construction and effect are identical with the 3rd of the 1st embodiment and the 8th.
[the 11st of the 1st embodiment]
Figure 24 represents the 11st of the 1st embodiment of the present invention.The situation of the steering axle device of this example and the 1st embodiment party The 10th of formula is identical, is fixing the width medial surface of two supporting boards 28 of side stand 44 with displacement side stand 45h's Part between two clamped portion 50d width lateral surface, is each equipped with a 1st friction plate 62a and one the 2nd friction Plate 63a.In addition, in the case of this example, the size W on the mutual width of width medial surface of supporting board 28 is same Length D and TALLRoughly the same (the W ≈ D+T of sumALL), wherein, D is the length between clamped portion 50d width lateral surface Degree, TALLIt is the 2nd friction plate 63a thickness T63aSum (TALL=2T63a)。
In the same manner as the construction of the 1st friction plate 62 of the 10th of the 1st embodiment, the 1st friction plate 62a is iron class alloy The component of the tabular long in the longitudinal direction of the light-alloy such as system or aluminium class alloy, magnesium class alloy.In addition, in the 1st friction plate 62a, the position that is at least aligned with clamped portion 50d post side through hole 29 is formed with can run through the front and back of rod component 19 The 1st friction plate side through hole 65a grown upwards.In the same manner as the 1st friction plate 62 of the 10th of the 1st embodiment, the 1st friction plate The 62a part held rearward and the part at forward end utilize pilot pin 66 (reference picture 20) to be only capable of the state of displacement in the width direction It is supported on clamped portion 50d.That is, the 1st friction plate 62a with can with displacement side stand 45h along the longitudinal direction and above-below direction join Mobile state support is in displacement side stand 45h dynamicly.
On the other hand, the 2nd friction plate 63a is by configure in parallel with each other a pair of friction plate portions 68 and makes these plate portions that rub The connecting portion 69 that 68 bottom is connected with each other is constituted, and section shape is substantially U-shaped.2nd friction plate 63a passes through bending forming The tabular component of light-alloy such as iron class alloy system or aluminium class alloy, magnesium class alloy and constitute.In addition, in the phase of friction plate portion 68 The part being mutually aligned, a pair of the 2nd friction plate side through hole 67a of rod component 19 can be run through with the degree do not rocked by being formed with. That is, run through in the 2nd friction plate side through hole 67a in the state of rod component 19, the 2nd friction plate 63a can carry out shaft-like with this Displacement in the movement of the linkage of component 19 and the axial direction of the rod component 19.
In the clamped portion of the width medial surface and displacement side stand 45h of the supporting board 28 of fixed side stand 44 Part between 50d, be each equipped with the 1st friction plate 62a and the 2nd friction plate 63a, the 1st friction plate 62a and the 2nd friction plate 63a with Following state configuration, i.e.,：One the 2nd friction plate 63a connecting portion 69 turns into lower section, and in the 2nd friction plate 63a friction plate portion A the 1st friction plate 62a is clamped between 68.
, can be further compared with the construction of the 10th of the 1st embodiment in the case of the steering axle device of this example Increase the summation of the friction area of abutment portion between the 1st friction plate 62a and the 2nd friction plate 63a, being capable of increasing friction force. Therefore, it is possible to which steering wheel 1 to be stably maintained to the position after regulation.In addition, the support 46b of this example also can be such as support 46 constructions being integrated like that using front side and rear side.Others construction and effect are identical with the 10th of the 1st embodiment.
[the 12nd of the 1st embodiment]
Figure 25 and Figure 26 represent the 12nd of the 1st embodiment of the present invention.The construction of the steering axle device of this example is relative In the construction of the 10th of the 1st embodiment, in the displacement side stand 45i clamped portion 50d other end (Figure 26 lower end) Provided with rake 51b.In addition, the column jacket 42j and displacement side stand 45i construction and the 1st in addition to provided with rake 51b are real The construction for applying the column jacket 42i of the 11st of mode is identical.In addition, the of the feature of rake 51b construction and the 1st embodiment The rake 51 of 1 is identical.
In the state of the column jacket 42j for the steering axle device for constituting this example is assembled, in the support plate of fixed side stand 44 Part between the width medial surface in portion 28 and displacement side stand 45i clamped portion 50d, is each equipped with implementing with the 1st 10th friction plate 62 of identical the 1st of mode, the 2nd friction plate 63 rub with the 11st the friction plate 62a of identical the 1st, the 2nd Wiping board 63a.In addition, the construction that the support 46b of this example can be also integrated as support 46 using front side and rear side.Its His construction and effect is identical with the 1st of the 1st embodiment and the 11st.
[the 13rd of the 1st embodiment]
Figure 27 and Figure 28 represent the 13rd of the 1st embodiment of the present invention.The construction of the steering axle device of this example is relative In the construction of the 10th of the 1st embodiment, in the displacement side stand 45j clamped portion 50d other end (under in Figure 28 End) it is provided with rake 51c.In addition, the construction of column jacket 42k and displacement side stand 45j in addition to provided with these rakes 51c with The column jacket 42i of the 10th of the 1st embodiment construction is identical.In addition, the feature of rake 51c construction and the 1st embodiment party The displacement side stand 45a of the 2nd of formula rake 51a construction is identical.Assembling the steering axle device of composition this example In the state of column jacket 42k, in the width medial surface and displacement side stand 45j quilt of the supporting board 28 of fixed side stand 44 Part between clamping part 50d, be equipped with these parts with the 10th friction plate 62 of identical the 1st of the 1st embodiment, 2nd friction plate 63 or with the 11st the friction plate 62a of identical the 1st, the 2nd friction plate 63a.In addition, the support 46b of this example The construction that can be integrated as support 46 using front side and rear side.Others construction and effect and the 1st embodiment 2nd and the 10th identical.
[the 14th of the 1st embodiment]
Figure 29 represents the 14th of the 1st embodiment of the present invention.Constitute the displacement side stand of the steering axle device of this example The state that 45k is protruded upward with the leading section from column jacket 42l is set.In displacement side stand 45k, support 46c is preceding Rear is not separated upwards and is integrally formed, but displacement side stand 45k substantially has the position with the 10th of the 1st embodiment Side stand 45h constructions substantially symmetric on radially (above-below direction) are moved, portion 50e and bottom 55c structures are clamped by pair of right and left Into.
The state that clamped portion 50e is extended upward with the main part from column jacket 42l is set, parallel to each other.In addition, bottom Portion 55c is so that the state that a clamped portion 50e ora terminalis (upper edge in Figure 29) is connected in the width direction each other is set.In place The side stand 45k clamped portion 50e part being mutually aligned is moved, post side through hole 29 long in the axial direction is respectively formed with.
In clamped portion of the width medial surface with displacement side stand 45k for fixing the supporting board 28 of side stand 44 Part between 50e width lateral surface, is each equipped with the 1st friction plate 62 and the 2nd friction plate 63.
In the case of the steering axle device of this example, displacement side stand 45k is protruded upward with the leading section from column jacket 42l State set.Therefore, rod component 19 is configured without below column jacket 42l leading section, energy can be easily realized Enough prevent the design of the constructions of interference such as knee with driver.Others construct and acted on the 10th with the 1st embodiment It is identical.
[the 15th of the 1st embodiment]
Figure 30 represents the 15th of the 1st embodiment of the present invention.Constitute column jacket 42l and the position of the steering axle device of this example The construction for moving side stand 45k is identical with the construction of the 14th of the 1st embodiment.
In this example, in the same manner as the 11st of the 1st embodiment, in the width of the supporting board 28 of fixed side stand 44 Direction medial surface is each equipped with having with the part between displacement side stand 45k clamped portion 50e width lateral surface A the 1st friction plate 62a, the 2nd friction plate 63a constructed with the 11st identical of the 1st embodiment.Others construction And act on identical with the 11st of the 1st embodiment.
[the 16th of the 1st embodiment]
Figure 31 and Figure 32 represent the 16th of the 1st embodiment of the present invention.The situation of the steering axle device of this example is also By column jacket 42m configurations at the rear of inner prop 43.Column jacket 42m except support 46c be not integrally formed dividually in the longitudinal direction with Outside, the column jacket 42i identical essential structures with the 10th with the 1st embodiment.
As Figure 31 (b), (c) shown in, column jacket 42m displacement side stand 45l bottom 55b width center, At least the position axially aligned with pair of right and left post side through hole 29, is formed with elongated hole 57 (57a) long on axial direction.These elongated holes 57 (57a) effect is identical with the 4th of the 1st embodiment.Others construction and effect with the 4th of the 1st embodiment and 10th identical.
[the 17th of the 1st embodiment]
Figure 33 represents the 17th of the 1st embodiment of the present invention.The column jacket 42n of steering axle device of this example is constituted except branch Beyond bearing portion 46c is not integrally formed dividually in the longitudinal direction, with the column jacket 42i phases of the 10th with the 1st embodiment Same essential structure.
Column jacket 42n, after making outer peripheral face of the displacement side stand 45m bottom 55b axial rearward end with column jacket 42n be connected On side connecting portion 56, the width elongated hole 70 for the Long Circle long in the direction of the width being formed with shown in Figure 33 (b).Separately Outside, the shape of the width elongated hole 70 is not limited to the Long Circle of this example, or rectangle grown in the direction of the width etc.. In addition, width elongated hole 70a that also can be as shown in Figure 33 (c), width both ends form collateral to displacement Frame 45m clamped portion 50d.The effect of the width elongated hole 70 (70a) and the phase of elongated hole 58 of the 5th of the 1st embodiment Together, using the width elongated hole 70 (70a), displacement side stand 45m axial rearward end portion can be reduced in the direction of the width Rigidity.Others construction and effect are identical with the 5th of the 1st embodiment and the 10th.
[the 18th of the 1st embodiment]
Figure 34 and Figure 35 represent the 18th of embodiments of the present invention.Constitute the column jacket 42o of the steering axle device of this example Column jacket 42m identical essential structures with the 16th with the 1st embodiment.Following in column jacket 42o is formed in part with point The pair of right and left column length hole 59 do not grown in the axial direction, the part is：It is in column jacket 42o, vertically, from than post side through hole 29 Axial central portion part somewhat on the front, to the axial rearward end portion than displacement side stand 45n (make bottom 55b axial rearward end The rear end side connecting portion 56 being connected with column jacket 42o outer peripheral face) somewhat rearward untill, the part being mutually aligned.In addition, these The axial forward end position in column length hole 59 is not limited to the position of this example, can also form more forward than the front end of post side through hole 29 Untill the position of side.
The effect in these column length holes 59 is identical with the column length hole 59 of the 7th of the 1st embodiment.In this example, column length hole 59 are also formed in following location：On column jacket 42o circumferencial direction, than contemplate plane β by displacement side stand 45n sides (Figure 34 and Lower section in Figure 35), and formation in protrusion 47k, 47i than constituting support 46c lower section protrusion 47i by the top Position, imagination plane β through column jacket 42o support 46c inscribed circle (outer peripheral face of inner prop 43) central axis O42oAnd it is orthogonal with the supporting board 28 of fixed side stand 44.Others construction and effect and the 7th of the 1st embodiment and the 16 identical.
[the 1st of the 2nd embodiment]
Figure 36~Figure 41 represents the 1st of the 2nd embodiment of the present invention.The steering axle device of this example includes：Steering column 71；Displacement side stand 74；The respectively fore-and-aft direction elongated hole 29 of the pair of right and left of the 1st fore-and-aft direction elongated hole；Support support 75；Point Not Wei the 1st through hole pair of right and left above-below direction elongated hole 30；1st friction member 76 of pair of right and left；Before the 2nd of pair of right and left Rear is to elongated hole 77；2nd friction member 78 of pair of right and left；The respectively circular hole 79 of the pair of right and left of the 2nd through hole；Pressing device 80。
Steering column 71 is by making the rearward end of the leading section of the column jacket 72 of rear side and the inner prop 73 of front side with can be vertically The mode of displacement is fitted together to, and whole length can be made to stretch.Such steering column 71 is via pivot 11 (reference picture 51) by inner prop 73 Leading section by can relative to vehicle body along the vertical direction carry out swing displacement in the way of support.
Displacement side stand 74 is outer with this in the leading section for the column jacket 72 for constituting steering column 71 by method of hydroforming work Post 72 is set to one.Displacement side stand 74 be in using upper plate portion 82 make the upper end of pair of right and left side plate 81 that is parallel to each other that This connected bowed shape.Also, the part being mutually aligned of side plate 81 wherein, is formed with fore-and-aft direction elongated hole 29. In addition, the central portion in upper plate portion 82 is formed with locking hole 83.In the case of this example, being shaped so as to the locking hole 83 The width dimensions in rear and front end portion are more than the venturi-shaped of front and rear pars intermedia.
Supporting support 75 is to be engaged by welding etc. formed by fixed upper support element 26 and bottom bracket element 27, The top bracket element 26 and bottom bracket element 27 have enough intensity and rigid by bending forming steel plate etc. respectively Metallic plate is formed.Bottom bracket element 26 includes the left and right set with the state that both sides in the width direction clip displacement side stand 74 A pair of supporting boards 28.The supporting support 75 is via locking box 85 with energy in the presence of the impact load that is subject in secondary collision Enough modes departed from forwards relative to vehicle body, the mounting plate portion 84 to the left and right ends portion located at top bracket element 26 is carried out Supporting.In addition, in the part being mutually aligned of supporting board 28, being formed with above-below direction elongated hole 30.In addition, these above-below directions The direction of partial arc of the direction of elongated hole 30 for the angle of inclination relative to horizontal direction slightly smaller than centered on pivot 11.Its Reason is：In secondary collision, no matter whether block between the outer peripheral face of rod component 19 and the front-end edge of above-below direction elongated hole 30 Close, all prevent the position of steering wheel 1 from rising, to seek the driver that adequately protected when crashing.Such construction quilt It is documented in Japanese Unexamined Patent Publication 2010-52639 publications, and idea of the invention onrelevant, therefore omits detailed description.
1st friction member 76 is by the way that the extrusion molding material or drawing material of the light-alloys such as aluminium class alloy are cut into Specific length is implemented to remove the finishing processing of unwanted part and be manufactured into again, includes respectively：1st friction plate portion 86, company Knot tying portion 87, engaging portion 88, the 2nd fore-and-aft direction elongated hole 77, holding recess 89, engagement groove part 90.1st friction plate portion 86 is except this Be formed as tabular beyond the setting unit for keeping recess 89, and the 1st friction plate portion 86 is clamped in the medial surface of supporting board 28 (in the width center side face relative with displacement side stand 74) is between the 2nd friction member 78.In addition, link plate portion 87 from The upper edge of 1st friction plate portion 86 towards displacement side stand 74 width central portion, to bending on the inside of width.It is locking Portion 88 be from link plate portion 87 width inner end to the 1st friction plate portion 86 direction bending section L-shaped hook-type. Recess 89 is kept to form the lateral surface in the 1st friction plate portion 86 along the longitudinal direction.2nd fore-and-aft direction elongated hole 77, which is formed, is keeping recessed The bottom surface in portion 89, it is long in the axial direction of steering column 71.
In the case of this example, the holding recess 89 of the 1st friction member 76 keeps being fixed with cushion collar 92 respectively.The buffering Set 92 is the elastomeric material system as the elastomers such as rubber, vinyl, before the 3rd provided with the length in the axial direction of steering column 71 Rear is to elongated hole 93.The fore-and-aft direction length of 3rd fore-and-aft direction elongated hole 93 is slightly shorter than the front and back of the 2nd fore-and-aft direction elongated hole 77 To length.Cushion collar 92 passes through bonding with the 3rd fore-and-aft direction elongated hole 93 and the 2nd fore-and-aft direction elongated hole 77 state aligned with each other Kept etc. being fixed in recess 89.In this condition, the rearward end of the 3rd fore-and-aft direction elongated hole 93 is configured than the 2nd fore-and-aft direction The forward part of the rearward end of elongated hole 77, the leading section of the 3rd fore-and-aft direction elongated hole 93 is configured than the 2nd fore-and-aft direction elongated hole 77 The part of leading section rearward.In a word, a part for elastomeric material for composition cushion collar 92 is made compared to the 2nd fore-and-aft direction elongated hole 77 The ora terminalis of fore-and-aft direction two it is prominent by the part in center to the 2nd fore-and-aft direction elongated hole 77.
1st friction member 76 is in the way of with the simultaneous displacement of displacement side stand 74 (relative to the position of the displacement side stand 74 Move the state being prevented from) it is assembled in the displacement side stand 74.That is, the carry out group as shown in Figure 38 (A)~Figure 38 (B) Close.First, so that what the medial surface of the 1st friction plate portion 86 of the 1st friction member 76 was abutted with the lateral surface of displacement side stand 74 State, makes the 1st friction member 76 and displacement side stand 74 close to each other along the vertical direction.Then, so as to link under plate portion 87 The state that surface is abutted with the upper surface of displacement side stand 74, makes the 1st friction member 76 relative to displacement side stand 74 to width Direction lateral displacement.As a result, engaging portion 88 engaging in locking hole 83 width ora terminalis, and the 1st friction plate portion 86 in Side the lateral surface of displacement side stand 74 between, provided be inserted into the 2nd friction member 78 the 2nd friction plate portion 91 between Gap.In this condition, the 2nd fore-and-aft direction elongated hole 77 is made to be mutually aligned with being formed at the fore-and-aft direction elongated hole 29 of side plate 81.
2nd friction member 78 includes respectively：It is formed with the flat 2nd friction plate portion 91 of circular hole 79, is rubbed from the 2nd The upper end of plate portion 91 on the outside of width bending from side observe the engaging plate portion 95 for being shaped as waveform.2nd rubs Wiping board portion 91 makes the length dimension of fore-and-aft direction big being present in the latter half than circular hole 79 on the lower, it is ensured that with assembling shape The friction area of the opposite face abutted under state.In addition, by making the internal diameter of circular hole 79 slightly larger than the bar for constituting pressing device 80 The external diameter of the bar portion 37 of shape component 19, can make the rod component 19 not rock but revolvable mode is through circular hole 79. 2nd friction member 78 is sticked in the engagement groove part 90 of the 1st friction member 76 by plate portion 95 is engaged with following state, and the state is： Displacement, and the side at a right angle with the engagement groove part 90 can be carried out along the direction (axial direction of steering column 71) of the engagement groove part 90 It is prevented to the displacement of, i.e. above-below direction.Also, in this condition, the 2nd friction member 78 is clamped in composition displacement side stand 74 Side plate 81 lateral surface and the 1st friction member 76 between.In addition, the 1st friction member 76 is clamped in into composition supporting support Between the medial surface of 75 a pair of supporting boards 28.
In addition, in the state of these components are assembled with, make rod component 19 through before above-below direction elongated hole the 30, the 3rd Pressing device 80 is assembled to elongated hole 93, the 2nd fore-and-aft direction elongated hole 77, circular hole 79, fore-and-aft direction elongated hole 29 in rear.The shaft-like structure Part 19 is formed with external thread part 96 in the top ends (left part in Figure 36 and Figure 37) of bar portion 37, in base end part (Figure 36 and figure Right part in 37) export-oriented flange shape flange part 38 is formed with, in the medial surface (left surface in Figure 36) of the flange part 38 It is formed with engaging protuberances 39.The engaging protuberances 39 are long rectangle long in the vertical direction, and to be only capable of carrying out along its upper and lower To movement the above-below direction of a side (right in Figure 36 and Figure 37) that is fastened in a pair of above-below direction elongated holes 30 of mode The inner side of elongated hole 30.In other words, in the state of engaging protuberances 39 engage with the above-below direction elongated hole 30 of a side, rod component 19 do not rotate.
Make rod component 19 through above-below direction elongated hole 30, the 3rd fore-and-aft direction elongated hole 93, the 2nd fore-and-aft direction elongated hole 77th, before circular hole 79, fore-and-aft direction elongated hole 29, above-mentioned component is made to combine like that as shown in figure 36 in advance.In addition, Figure 37 is Represented for the ease of understanding the assembled state of the 1st friction member 76, the 2nd friction member 78 and cushion collar 92 and rod component 19 Rod component 19 bar portion 37 through each hole 77,79,93 located at above-mentioned component 76,78,92 state.But, In the case of reality, the rod component 19 is first running through the above-below direction elongated hole 30 of a side before each hole 77,79,93.
When assembling the steering axle device of this example, as shown in figure 36 like that, combination support support 75, steering column the 71, the 1st rub Component 76, the 2nd friction member 78, cushion collar 92 are wiped, makes the bar portion 37 of rod component 19 through above-below direction elongated hole the 30, the 2nd Fore-and-aft direction elongated hole 77, circular hole 79, fore-and-aft direction elongated hole 29.Then, in the top ends of the bar portion 37, (scheme through the opposing party Left in 36 and Figure 37) above-below direction elongated hole 30 and from the supporting board 28 of any one party (left in Figure 36 and Figure 37) Lateral surface protrude part, assemble pressing device 80.In order to constitute the pressing device 80, in the top ends of bar portion 37, from appointing The outside surface side of one supporting board 28 of meaning is outer by driving side cam 97, driving side cam 98, keeper (holder) successively 99th, adjusting rod 18, force bearing plate 100.Also, using the nut 101 being screwed with external thread part 96, prevent the force bearing plate 100 To the direction displacement away from supporting board 28.In addition, long along the above-below direction of the opposing party to be only capable of carrying out by driving side cam 97 The mode (state that the rotation around bar portion 37 is prevented from) of the displacement in hole 30 is sticked in the above-below direction elongated hole of the opposing party 30.In addition, driving side cam 98 and adjusting rod 18 via keeper 99 can be combined in the way of synchronous rotary, and by centripetal Bearing 102 in the way of bar portion 37 is pivoted about can be supported on around the top ends of the bar portion 37.According to the knot Structure, rotation driving is carried out using adjusting rod 18 to driving side cam 98, can expand and reduce by the driving side cam 98 and by The axial dimension for the cam gear 20 that driving side cam 97 is constituted.
In the construction of this example, in the position adjustments of travel direction disk 1, adjusting rod 18 is swung displacement downwards, contract The axial dimension of small cam gear 20.As a result, located at rod component 19 base end part flange part 38 with by driving side cam 97 Between interval expand, respectively rub holding section, the i.e. medial surface of supporting board 28 and the 1st rub plate portion 86 lateral surface friction The friction holding section of the lateral surface of holding section, the medial surface of the 1st friction plate portion 86 and the 2nd friction plate portion 91, the 2nd friction plate portion 91 The surface pressing of friction holding section of lateral surface of medial surface and side plate 81 reduce or disappear.In this condition, Neng Gou The front and back position of steering wheel 1 is adjusted in following scope, the scope is：The bar portion 37 of rod component 19 can be in fore-and-aft direction elongated hole 29 The interior scope for carrying out displacement.In addition, the upper-lower position of steering wheel 1 can be adjusted in following scope, the scope is：The bar portion 37 The scope of displacement can be carried out in above-below direction elongated hole 30.
When making direction disk 1 be moved to the critical localisation that can be adjusted along the longitudinal direction, the bar portion 37 of rod component 19 Outer peripheral face and be formed at cushion collar 92 the 3rd fore-and-aft direction elongated hole 93 inner peripheral surface leading section or rearward end collide.Bar portion 37 outer peripheral face will not be with formed by metal component, fore-and-aft direction elongated hole 29, the inner peripheral surface of the 2nd fore-and-aft direction elongated hole 77 Leading section or rearward end collision.Cushion collar 92 is elastomeric material system, even if therefore the outer peripheral face of bar portion 37 and the 3rd fore-and-aft direction The leading section of the inner peripheral surface of elongated hole 93 or rearward end collision, also will not bring discomfort, no to the driver of operation steering wheel 1 Happiness sense.In addition, by being set respectively between the rear and front end face of cushion collar 92 and the 3rd fore-and-aft direction elongated hole 93 set respectively Slit 103 (reference picture 37) is put, the cushioning effect of cushion collar 92 can be also adjusted.
After the position desired by by the upper-lower position of steering wheel 1 and front and back position regulation, if making adjusting rod 18 upward Side swings displacement, expands the axial dimension of cam gear 20, then steering wheel 1 can be kept to position after adjustment.That is, at this Under state, flange part 38 and the surface pressing rising by the interval diminution between driving side cam 97, respectively friction holding section.1st Displacement of the friction member 76 engaging in the steering column 71 in the way of the synchronous shift of displacement side stand 74 with steering column 71 is collateral The friction member 78 of frame the 74, the 2nd is in the way of with the synchronous shift of rod component 19 engaging in rod component 19.In addition, the shaft-like structure The state support that part 19 is prevented from the displacement of fore-and-aft direction is between supporting board 28.Therefore, with being not provided with the 1st friction Component 76, the situation of the 2nd friction member 78, the situation phase being only clamped in displacement side stand 74 between supporting board 28 Than the increasing number for the friction holding section that can make to keep the front and back position of steering wheel 1 and play a role.Therefore, pass through Increase rubbing surface quantity to expand friction area, can increase for the position by the front and back position holding of steering wheel 1 after adjustment The confining force put.
The confining force of the upper-lower position of steering wheel 1 ensures in the following way, i.e.,：Make the medial surface of supporting board 28 same The part moved up and down together with direction disk 1 rubs at the left and right sides is per side Ge Liangge positions to be engaged.That is, in the feelings of this example Under condition, in a part for column jacket 72, in the part positioned at the downside of displacement side stand 74, it is formed with pair of right and left and is clamped flat part 104.Also, in the state of adjusting rod 18 is swung displacement upward, on the top of the medial surface of supporting board 28, via 1 friction member 76 and the 2nd friction member 78 clamping displacement side stand 74, at the same time, under the medial surface of supporting board 28 Portion, the clamped flat part 104 of clamping.In the leading section of these supporting boards 28, bending plate portion 105, support plate are respectively formed with Rigidity of the portion 28 on the width of supporting support 75 is sufficiently high.Thus, it is also possible to make under the medial surface of supporting board 28 The power of the clamped flat part 104 of portion's clamping is sufficiently large.Like this, according to the construction of this example, the front and rear of steering wheel 1 can not only be made The confining force of position is sufficiently large, and the confining force of upper-lower position can be made sufficiently large.
In the steering axle device of this example, the 1st friction member 76 and the 2nd used in the confining force of increase front and back position rubs Wiping the assembly operation of component 78 can easily be carried out.Therefore, it is possible to realize by the big telescopic steering apparatus of confining force The cost reduction that the facilitation of assembly manipulation is brought.In addition, making steering wheel 1 be moved to regulation critical localisation along the longitudinal direction When, discomfort will not be brought to driver, the construction of discomfort also can be to be realized with a low cost.
[the 2nd of the 2nd embodiment]
Figure 42 and Figure 43 represent the 2nd of the 2nd embodiment of the present invention.In the case of this example, pair of right and left the 1st is rubbed Wipe component 76a be manufactured into by bending forming intermediate raw material, the intermediate raw material be by such as carbon steel plate, no The metallic plate such as iron class alloy plate as steel plate that becomes rusty is implemented obtained from punching and shaping.Also, located at the 1st friction member 76a Holding recess 89 rear and front end portion, formed with blocking each a part of state of rear and front end opening of the holding recess 89 Have a pair and bend up portion 106.These bend up the mutual interval in portion 106 and are maintained at wanting before the cushion collar 92 kept in recess 89 Rear is identical to length.Also, utilize and bend up the holding recess that portion 106 is maintained at the 1st friction member 76a from front and rear sandwich Cushion collar 92 in 89, prevents these cushion collars 92 from being offset along the longitudinal direction relative to the 1st friction member 76a.Therefore, in this example In the case of, it is not necessary that cushion collar 92 is adhered to the 1st friction member 76a.The structure of other parts and effect are implemented with the 2nd The 1st of mode is identical.
[the 3rd of the 2nd embodiment]
Figure 44 represents the 3rd of the 2nd embodiment of the present invention.In the case of this example, by combining each pair the 1st Friction member element 107a, 107b and constitute the 1st friction member 76b.These the 1st friction member element 107a, 107b are so that each It is individual link plate portion 87a, 87b and engaging portion 88a, 88b overlap respectively each other and make each the 1st friction plate portion 86a, 86b each other from The combinations of states opened.Also, in this condition, in the same manner as the situation of the 1st of the 2nd embodiment, the 1st friction member 76b By can be with being supported on the displacement side stand 74 in the way of the synchronous shift of displacement side stand 74.In addition, in the case of this example, point Not Wei flat 2nd friction member 78a displacement side stand 74 both sides respectively set two, altogether provided with 4.Also, these Be embedded in beyond 2nd friction member 78a the bar portion 37 of rod component 19 state be clamped in a side the 1st friction plate portion 86b two Between 1st friction plate portion 86a of the lateral surface and the opposing party of side and displacement side stand 74 medial surface.
In the case of this example, step increase makes adjusting rod 18 swing displacement upward and is making the axial direction of cam gear 20 The quantity of rubbing surface in the state of dimension enlargement (reference picture 36), further increases for the front and back position of steering wheel 1 to be protected Hold the power of position after adjustment.The structure of other parts and effect are identical with the 1st of the 2nd embodiment.
[the 4th of the 2nd embodiment]
Figure 45 represents the 4th of the 2nd embodiment of the present invention.In the case of this example, steering column 71a column jacket is constituted The component that 72a and displacement side stand 74a are circuits formed independently of one another, is combined by welding and fixed.The structure of other parts and Effect is identical with the 1st of the 2nd embodiment.
Industrial utilizability
On the 1st form of the present invention, in addition to a part, illustrate to include front and back position for adjusting steering wheel The transfer of telescoping mechanism.But, the present invention as the 10th of the 1st embodiment, the 11st, the 2nd embodiment, It can be applied to also include being used to adjust the construction of the leaning device of the upper-lower position of steering wheel in addition to telescoping mechanism.The opposing party Face, for using the example that the construction of leaning device is illustrated is included, can also omit leaning device.In addition, real the 1st In apply mode the 6th, the 14th and the 15th, exemplified with construction of the displacement side stand on the upside of steering column, but at other Example in, can also be erected at displacement is collateral like this on the upside of steering column.As long as in this regard, making displacement side stand and steering column Spin upside down.In addition, the fore-and-aft direction for the column jacket and inner prop for constituting steering column can be any.Inner prop for rear side construction and Column jacket can be using the present invention for the construction of rear side.
Description of reference numerals
1 steering wheel
2 steering gears
3 input shafts
4 track rods
5 steering spindles
6th, 6a~6d steering columns
7 general utility couplings
8 jackshafts
9 general utility couplings
10 vehicle bodies
11 pivots
12nd, 12a fixes side stand
13rd, 13a~13d column jackets
14th, 14a inner props
15 outer shafts
16 interior axles
17 motor
18 adjusting rods
19 rod components
20 cam gears
21 cam members
22nd, 22a, 22b displacement side stand
23 protrusions
24 supporting claws
25 clamped portions
26 top bracket elements
27 bottom bracket elements
28 supporting boards
29 fore-and-aft direction elongated holes (post side through hole)
30 above-below direction elongated holes
31 the 1st friction plates
32 the 2nd friction plates
33 the 1st elongated holes
34 the 2nd elongated holes
35 the 1st limit screws
36 the 2nd limit screws
37 bar portions
38 flange parts
39 engaging protuberances
40 push plate
41 steering columns
42nd, 42a~42o column jackets
43 inner props
44 fix side stand
45th, 45a~45m displacements side stand
46th, 46a~46c supports
47a~47l protrusions
48th, 48a, 48b recess
The part that 49 internal diameters can expand and reduce
50th, 50a~50e is clamped portion
51st, 51a~51c rakes
52 connecting portions
53 heads
54 back nuts
55th, 55a~55c bottoms
56th, 56a connecting portions
57th, 57a, 57b elongated hole
58 elongated holes
59 column length holes
60th, support on front side of 60a
61st, support on rear side of 61a
62nd, the friction plates of 62a the 1st
63rd, the friction plates of 63a the 2nd
64 vehicle body side through hole
65th, the friction plate side through hole of 65a the 1st
66 pilot pins
67th, the friction plate side through hole of 67a the 2nd
68 friction plate portions
69 connecting portions
70th, 70a widths elongated hole
71st, 71a steering columns
72nd, 72a column jackets
73 inner props
74th, 74a displacements side stand
75 supporting supports (fixed side stand)
76th, the friction member of 76a, 76b the 1st
77 the 2nd fore-and-aft direction elongated holes
78th, the friction members of 78a the 2nd
79 circular holes
80 pressing devices
81 side plates
82 upper plate portions
83 locking hole
84 mounting plate portion
85 locking boxes
86th, the frictions of 86a, 86b the 1st plate portion
87th, 87a, 87b link plate portion
88th, 88a, 88b engaging portion
89 keep recess
90 engagement groove parts
91 the 2nd friction plate portions
92 cushion collars
93 the 3rd fore-and-aft direction elongated holes
94 friction plate portions
95 engaging plate portions
96 external thread parts
97 by driving side cam
98 driving side cams
99 keepers
100 force bearing plates
101 nuts
102 radial bearings
103 slits
104 clamped flat parts
105 bending plate portions
106 bend up portion
The friction member element of 107a, 107b the 1st

Claims (8)

1. a kind of telescopic steering apparatus, it is characterised in that have：
Steering column, the steering column has the structure that can be stretched；
Displacement side stand, the displacement side stand is arranged at a part for the steering column；
First fore-and-aft direction elongated hole, the first fore-and-aft direction elongated hole is formed at the displacement side stand, and in the steering column Axial direction on it is long；
Support is supported, the supporting support has the left and right that the state for clipping the displacement side stand with both sides in the width direction is set A pair of supporting boards, and it is supported on body side；
First through hole, the first through hole is formed at the part being mutually aligned of the supporting board and long with the first fore-and-aft direction The part of the part alignment in hole；
First friction member, first friction member by can be supported in the way of the displacement side stand synchronous shift it is described A part for displacement side stand；
Second fore-and-aft direction elongated hole, the second fore-and-aft direction elongated hole is formed at long with the first fore-and-aft direction in the first friction member The part of hole alignment, and it is long in the axial direction of the steering column；
Second friction member, second friction member be clamped in the displacement side stand lateral surface and the first friction member it Between；
Second through hole, second through hole is formed at one with the second fore-and-aft direction elongated hole in a part for the second friction member Divide the part of alignment；And
Pressing device, the pressing device has a rod component and a pair of pressing portion, and the rod component is to insert first through hole, The mode of one fore-and-aft direction elongated hole, the second fore-and-aft direction elongated hole and the second through hole is configured, and the pair of pressing portion is arranged at described The part that the lateral surface from the supporting board on the both ends of rod component is protruded, the pressing device is used to first rub The lateral surface for wiping component, the second friction member and the supporting board towards the displacement side stand is pushed, the rod component Axial displacement can be carried out with the rod component and substantially prevent the state of the displacement beyond the axial direction from being inserted through second Through hole,
First friction member has the first friction plate portion, links plate portion and engaging portion, and the first friction plate portion is clamped in described Between the medial surface of supporting board and the second friction member, the plate portion that links is from the ora terminalis of the first friction plate portion to the displacement The width central portion bending of side stand, the engaging portion is from the top ends of the link plate portion to the first friction plate portion Direction bending hook-type,
The width pars intermedia of the displacement side stand is provided with locking hole,
First friction member is with by the engaging portion is engaging in the width ora terminalis of the locking hole and makes the web Portion's state group overlapping with the displacement side stand is loaded on the displacement side stand.
2. telescopic steering apparatus according to claim 1, it is characterised in that
Set in the part around the second fore-and-aft direction elongated hole of the lateral surface of the first friction member and keep recess, it is recessed in the holding Cushion collar is kept in portion, the cushion collar is made up of elastomeric material, and before and after the provided with the length in the axial direction of the steering column the 3rd Direction elongated hole, the rearward end of the 3rd fore-and-aft direction elongated hole is configured in the portion more forward than the rearward end of the second fore-and-aft direction elongated hole Point, and the leading section of the 3rd fore-and-aft direction elongated hole is configured into the part in the leading section than the second fore-and-aft direction elongated hole rearward.
3. telescopic steering apparatus according to claim 2, it is characterised in that
Second friction member includes：It is formed with the flat second friction plate portion of second through hole and from the second friction plate portion The engaging plate portion for being shaped as waveform observed from side from upper end to bending on the outside of width, by the holding recess The upside partition board portion that separates of upper end and the link plate portion lower surface between, set long along the axial direction of the steering column Engagement groove part, the engaging plate portion with the steering column can carry out axial displacement and the steering column relative to axial direction into Right angle orientation is the state that is prevented from of displacement of above-below direction, is sticked in the engagement groove part.
4. telescopic steering apparatus according to claim 1, it is characterised in that
First friction member is constituted by combining multiple first friction member elements, these the first friction member elements respectively with A part for the displacement side stand can be supported on the mode of the displacement side stand synchronous shift, the first friction structure is constituted Part element first friction plate portion mutually left in the axial direction of the rod component each other, also, make each link plate portion and Hook portion is overlapped each other, and second friction member of more than one is clamped in at least any one place in following part：First friction Element first friction plate portion between part, any one the first friction member element first friction plate portion with First friction plate portion of part, any one the first friction member element between the lateral surface of the displacement side stand and institute State the part between the medial surface of supporting board.
5. telescopic steering apparatus according to claim 1, it is characterised in that
Each one group first of setting rubs between two lateral surfaces of the displacement side stand and the medial surface of two supporting board Component and the second friction member.
6. telescopic steering apparatus according to claim 1, it is characterised in that
First friction member is formed by carrying out bending forming processing to intermediate raw material obtained from punching and shaping metallic plate.
7. telescopic steering apparatus according to claim 2, it is characterised in that
In the rear and front end portion of the holding recess, with least one of of the rear and front end opening of each blocking holding recess State is formed with a pair and bends up portion, and the buffering that portion is held in the holding recess from front and rear sandwich is bent up using these Set, prevents the cushion collar from being offset along the longitudinal direction relative to the first friction member.
8. telescopic steering apparatus according to claim 1, it is characterised in that
Also there is leaning device, the steering column can be swung centered on the pivot for being arranged at width and is supported on displacement Vehicle body, first through hole is the above-below direction elongated hole extended along the vertical direction longly.
CN201510185954.9A 2011-02-25 2012-01-24 Telescopic steering apparatus Active CN104908801B (en)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
JP2011-039241 2011-02-25
JP2011039241 2011-02-25
JP2011-104286 2011-05-09
JP2011104286 2011-05-09
JP2011149845 2011-07-06
JP2011-149845 2011-07-06
JP2011-168006 2011-08-01
JP2011168006A JP5464182B2 (en) 2011-02-25 2011-08-01 Telescopic steering device
JP2011174566A JP5464184B2 (en) 2011-08-10 2011-08-10 Telescopic steering device
JP2011-174566 2011-08-10
JP2011-199176 2011-09-13
JP2011199176A JP5408214B2 (en) 2011-09-13 2011-09-13 Telescopic steering device
JP2011274601 2011-12-15
JP2011-274601 2011-12-15
CN201280000038.8A CN102791559B (en) 2011-02-25 2012-01-24 Steering column device

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WO (1) WO2012114812A1 (en)

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